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  • elaine chan 12:51 am on October 9, 2015 Permalink | Reply
    Tags: , Campylobacter, , , , raw milk, United States   

    Claravale Farm Raw Goat Milk Linked to Cases of Campylobacteriosis 

    Claravale Farm is a well-known dairy product distributor located in the state of California. The company lives up to their motto by producing “pure, natural and raw” dairy products for their customers, which includes raw, unpasteurized milk products. Among these raw milk varieties include goat milk, known for its nutritional and health benefits.

    With a nutrient profile similar to that of cow’s milk, goat milk’s additional health benefits is what draws a consumer’s attention. More notably, goat milk contains less allergenic proteins, easily digestible fats and proteins, and lower in cholesterol. For more information about the benefits of goat milk, please visit this site.

    Drinking goat milk does not seem to be quite a bad idea; however, consuming raw goat milk on the other hand, might be. The Centers for Disease Control and Prevention in the United States warns consumers about the risks associated with drinking raw milk. Although raw, unpasteurized milk is nutritionally dense, it contains a wide variety of disease-causing bacteria, including Brucella, Campylobacter, Salmonella, Mycobacterium bovis, Listeria, and Shiga-toxin producing Escherichia coli. Any individual that drinks raw milk has the risk of consuming such bacteria; thus, increasing the risk of illness. The risk of illness from consumption is particularly high for infants and young children, elderly, pregnant women, and individuals with weakened immune systems.

    On June 2015, the Health Officials in Orange County, California confirmed three cases of campylobacteriosis linked with Claravale Farm, due to the consumption of raw goat milk. The three cases were three young children less than 5 years of age. One of the children was hospitalized, but fortunately, all three were expected to fully recover. Campylobacteriosis is an infectious disease caused by the bacteria, Campylobacter. Its symptoms are seen within two to five days after exposure, and typically include diarrhea, cramping, abdominal pain and fever. This infectious bacterium is commonly associated with contaminated water, poultry, produce, and in this case, unpasteurized dairy products.

    The risk of getting campylobacteriosis is not solely limited to consuming raw goat milk; it applies to other raw, unprocessed products as well. Earlier in year during March 2015, six individuals from North California were diagnosed with campylobacteriosis after drinking Claravale Farm’s raw milk. The farm’s raw milk and cream products were then subjected to a statewide recall when the California Department of Public Health tested positive for Campylobacter. A similar situation occurred previously in March 2012, where positive test results for Campylobacter led to a statewide recall of Claravale Farm’s raw products.

    Claravale Farm is a strong and passionate company that is proud of their raw products, as demonstrated by their statement found on their company website:

    “Raw milk is unique in that it is the only significant source of a complete food in our diet that is not processed in some form being eaten. For instance, the enzymes are all available, whereas in pasteurized milk, less than 10% remain. What this means, is that your body can more readily utilize all of the nutrition that is available in this milk. That’s good for you, and it’s great for your kids!”

    Truthfully, there is no ‘perfect’ milk product. Indeed, pasteurized milk lacks the enzymes and natural nutrient profile found in raw milk. However, pasteurized milk also lacks the wide range of disease-causing bacteria raw milk contains. It is the pasteurization process that helps eliminate such bacteria to produce a food safe product ready for consumption. Yet, it is also the pasteurization process that eliminates the beneficial enzymes and natural nutrient profile present in the raw milk. This can be an on-going debate, but ultimately, the decision is upon the consumer, you.

    What is your ultimate decision? Raw or processed milk?

     


     

     

    Interested in the taste difference between goat’s milk and cow’s milk?

    https://www.youtube.com/watch?v=5MZ9hHS5Okc

    Curious about the effects of Campylobacter?

     

     
    • TamaraRitchie 11:38 am on October 9, 2015 Permalink | Reply

      While I believe that buying raw milk should be an individual choice and each individual should decide if the health benefits outweigh the risk of disease, I am not comfortable with the idea of individuals buying raw milk products and feeding raw milk products to their children. Children are more immunological acceptable to food borne pathogens and the outcomes of contracting a food borne pathogen can be more severe than in a healthy adult. For this reason I am against the sale of raw milk products because once in the consumers hand there is no way to control who he/she shares these raw milk products with.

    • CherylLau 3:29 pm on October 9, 2015 Permalink | Reply

      Although I do agree that the choice is ultimately on the consumer whether or not to purchase raw milk products, however, I believe that responsibility falls on everyone to prevent cases of food bourne illness. Manufacturers should be responsible for upholding the regulations for such products to ensure that their goods are within certain quality standards. Consumers should make an effort to be well informed in the dangers associated with the products before purchasing and feeding them to people who are highly susceptible to food bourne illnesses. Raw milk itself has many benefits and it would be unfair to ban it from the market if it was deemed safe to consume.

    • CherylLau 3:49 pm on October 9, 2015 Permalink | Reply

      Although I do agree that the choice is ultimately on the consumer whether or not to purchase raw milk and its products, however, I believe that the responsiblity falls on everyone to prevent food bourne illness. Manufacturers should uphold the regulations set for these types of products to ensure that their goods are within certain quality standards. Consumers should make an effort to be well informed and to be aware of the dangers associated with feeding these types of products to people who are highly susceptible to food boure illnesses. Raw milk products have many benefits as stated above, it would be unfair to exclude them from the market due to the chance of careless practices, as long as they are deemed safe to consume.

    • ColleenChong 11:22 am on October 10, 2015 Permalink | Reply

      A small portion of the population, such as dairy farmers, would have immunity to most of the bacteria found in raw milk since they been exposed to that environment for a period of time. But most people in the urban areas do not have this immunity and would have a much higher risk of getting sick, especially the elderly and young children. As for obtaining loss nutrients it can be complement with other food source. I am against the sales of raw milk to the general public because the risk is too high. Food safety is key to public health.

    • Cheryl Lau 2:46 pm on October 10, 2015 Permalink | Reply

      Although I do agree that the choice is ultimately on the consumer whether or not to purchase raw milk and its products, however, I believe that the responsibility falls on everyone to prevent food borne illness. Manufacturers should uphold the regulations set for these types of products to ensure that their goods are within certain quality standards. Consumers should make an effort to be well informed and to be aware of the dangers associated with feeding these types of products to people who are highly susceptible to food borne illnesses. Raw milk products have many benefits over pasteurized milk products as stated above, it would be unfair to exclude them from the market due to the chance of careless practices that might cause food borne illness, even if they were deemed safe to consume.

    • cheryl lau 2:59 pm on October 10, 2015 Permalink | Reply

      Although I do agree that the choice is ultimately on the consumer whether or not to purchase raw milk and its products, however, I believe that the responsibility falls on everyone to prevent the onset of food borne illnesses due to contaminated products. Manufacturers should uphold the regulations set for these types of products to ensure that their goods are within certain quality standards. Consumers should make an effort to be well informed and to be aware of the dangers associated with feeding these types of products to people who are highly susceptible to food borne illnesses. Raw milk products have many benefits over the pasteurized varieties as stated above, it would be unfair to exclude them from the market due to the chance of careless practices, even if they were deemed safe to consume.

    • Catherine Wong 3:38 pm on October 10, 2015 Permalink | Reply

      I personally also feel that raw milk should not be available for purchase because of all that pathogens present causing harm that would have been killed off with pasteurization. However on the other hand, are we able to actually take away the choice to purchase raw milk from the consumers who are adamant on consuming it? If there is enough demand for it, producers would continue producing and selling it. For raw milk consumers, they should be educated on both the benefits and detrimental effects of consuming raw milk. I know people who are quite obsessed with consuming all natural products and actually try to promote drinking raw milk to others by talking about all the benefits and none of the harm. This is a problem especially if the people they are promoting to do not know about the pathogens associated with raw milk. For this aspect, I feel that there is still a lot of work that needs to be done with educating the general public on the line that needs to be drawn between wanting to consume less processed foods and to the point where it becomes a risk to human health.

    • catherine wong 6:22 pm on October 10, 2015 Permalink | Reply

      In my opinion, I feel that raw milk should not be readily available for purchase due to all the pathogens present, which could cause a lot of harm when pasteurization could have killed them off. However on the other hand, are we able to actually take away the choice from consumers who are adamant on purchasing and consuming raw milk? If there is enough demand for it, producers would continue producing and selling it. For raw milk consumers, they should be educated on both the benefits and detrimental effects of consuming raw milk. I know some people who really enjoy consuming unprocessed foods and are trying to promote drinking raw milk to others by talking about all the benefits, but none of the harm. This is a problem especially if the people they are promoting to do not know about the pathogens associated with raw milk. For this aspect, I feel that there is still a lot of work that needs to be done with educating the general public on the line that needs to be drawn between wanting to consume less processed foods and to the point where it becomes a risk to human health.

    • DonnaKong 11:09 pm on October 10, 2015 Permalink | Reply

      Personally, I prefer consuming pasteurized milk not only because I am used to the taste, but for my own safety. However, like many have already stated, there are pros and cons to both types. As Catherine mentioned, banning the products may not be as easy as it seems because many who enjoy raw milk and would be devastated if there was a ban in place. Indeed the prohibition of raw milk would not be fair for consumers as it restricts their choices. I believe that for a product such as this, there should be a new policy in which there are warnings required on the label of the milk. Similar to how tobacco is sold in Canada, there should be warnings of possible risks that come with the product. The consumer is still given the option of purchasing the milk but they can be more informed of the consequences and be given specifications on who is less suitable to consume the product (children under 5, seniors, immuno-compromised, etc.). I am not sure if there should be an age limit required to buy this product, but I definitely think that informing risks will help people understand and react quicker should there ever be presence of campylobacter bacteria.

    • MichelleLui 11:16 pm on October 11, 2015 Permalink | Reply

      As a consumer, I would drink raw goat milk from an approved producer, providing that its operations meet the established food safety guidelines of the government regulatory agency. There are many high risk food items out on the market and restaurants. I do think the supplier should provide sufficient food safety information on the products so the consumer can make a well-informed decision. As kids are one of the high-risk group to food poisoning, the company should emphasize the food safety risks associated with kids consuming raw goat milk. Especially when they sell their milk using statement such as “Great for your kids”.

    • Mandy Tam 4:11 pm on October 13, 2015 Permalink | Reply

      I understand that Canada does not allow raw milk to be sale in the market. Therefore, I do not think there is a negotiate point in Canada rather raw milk should be consume or not. According to this article, raw milk seems to be allowed to sale in America. Therefore, it will be interesting to know what extra step America takes to prevent outbreak caused by raw milk. Also, it will be interesting to have a professional to share the difference in regulation/ microbe protocol in America.

    • dgozali 7:22 pm on October 13, 2015 Permalink | Reply

      Although raw milk may have several health benefits such as digestible fats and lower cholesterol levels, the health risks are far greater. For this reason, I feel that raw milk should not be sold to consumers without stating the health risks associated with it. Ultimately, the consumer should be able to make a choice whether or not to take that risk. Furthermore, there should be an indication on the packaging regarding the risk groups such as children and immunocompromised people who may have a greater chance of falling ill from consuming raw milk.

    • MarinaMoon 4:42 pm on October 14, 2015 Permalink | Reply

      As many have already stated, I also believe that raw milk should remain prohibited in Canada. Although there are many health benefits associated with raw milk, the negative consequences are too severe to risk the population to consume raw milk. Also, we live in a location where food availability is relatively abundant thus there are so many other alternatives where those nutrients can be consumed. I don’t think it is necessary to allow production of raw milk and risk the outbreaks that may result as a result. Also, as many are already adapted to and familiar with the taste of pasteurized milk, even if raw milk becomes available, I don’t think it would be consumed widely despite the nutritious aspects that it provides. Additionally, I would personally prefer to drink milk that I can trust its safety rather than milk that I need to be cautious of so many different diseases everytime I drink.

    • Rain Shen 12:23 am on October 17, 2015 Permalink | Reply

      As a milk drinker, I personally prefer safe pasteurized milk rather than the nourishing raw milk. Food safety is the most critical point when I purchase food products. It is true that choosing raw milk or not is a very personal choice. Some raw food zealots are eating all kinds of food in raw. However, those beneficial enzymes and nutrients in the raw milk might be uptake from other type of food. Even if the enzymes and nutrients in the raw goat milk are unique , we can still uptake these nutrients from the supplements, but they are not that essential for our metabolism or health. On the other hand, there is a high risk to get sick or even severe diseases by consuming the raw milk. Not speaking of different kinds of negative effects of the following medical treatments for the sickness. In my opinion, it is not worth taking the risk to drink raw milk, which will be more likely to get infected by the bacteria in it. Government should prohibit the sale of raw milk to ensure the food safety of most people.

    • RainShen 12:59 am on October 17, 2015 Permalink | Reply

      As a milk drinker, I prefer safe pasteurized milk rather than nourishing raw milk. The safety of the food will be the most critical point when I purchase food products. It is true that choosing to purchase raw milk or not is a very personal choice. Some raw food zealots are eating all kinds of food in raw. However, the enzymes and nutrients in the raw milk might be uptake from other kinds of food. Even if the enzymes and nutrients in the raw goat milk are unique, we can still uptake them from the supplements, but these nutrients are not essential for our body metabolism or health. Not consuming those nutrients won’t hazard our health. On the other hand, the bacteria in the raw milk will be more likely to cause sickness or even severe diseases. Not speaking of the negative effects of the following medical treatments. In my opinion, it is not worth taking the risk to consume raw milk which has the high possibility to threaten your health. Government should prohibit the sale of raw milk to ensure the food safety of most people.

    • teewong 12:28 am on December 15, 2015 Permalink | Reply

      I suppose one of the biggest contradiction between raw and pasteurized milk is that what is the point of drinking milk when the all the available nutrients are depleted in a pasteurized milk? With most of the benefits swept away, is there really a need to drink milk? Of course, many people prefer drinking milk because they like the taste of it, so I suppose drinking fortified pasteurized milk (adding nutrients that were lost back into the milk due to pasteurization) would probably satisfy both the hazardous concerns and taste buds. I am not a milk drinker myself because I do not enjoy the taste very much and I have not tried raw milk before, so this issue does not really bother me. However, I do believe in consuming products in the most natural state and in the least processed way as much as possible due to their bioavailability. I believe that raw milk could help promote different types of microbiota to flourish in our gut, which could lead us to better prevent from contracting different types of diseases. If we strip away the nutrients from raw milk, I feel that it would just be useless and wasting our money on something that we do not necessarily need.

  • kathykim 1:28 am on October 8, 2015 Permalink | Reply
    Tags: , Camel, Campylobacter, , Qutar, Saudi Arabia   

    Camel Milk : a miracle food or a risky food 

    The practice of drinking fresh camel milk originated from Qatar tradition. Drinking fresh camel milk is practiced in semi-arid and arid areas of African and Asian countries including Qatar, Saudi Arabia, and any other regions you can imagine people riding on camels.

    Camel milk got famous for its nutritious content along with its therapeutic effects in diabetes, autism, and allergies. The nutrient profile of camel milk is pretty impressive that it is actually more nutritious than cow’s milk. Camel milk is low in fat,  high in iron and other anti-oxidants. What is more, camel milk resembles the milk of human, which might indicate that it could be more suitable for our nutritional needs.  For such benefits, the demand for camel milk is increasing, as it is to be introduced in European market in the future.

    The bad news is, that consuming fresh camel milk can lead us to be infected with Campylobacter jejuni (C. jejuni), a leading foodborne pathogen around the world. Infection by C.jejuni can manifest a variety of symptoms including diarrhea, fever, abdominal pain, and even inflammatory bowel disease. The cause of the infection can be tracked back to the fact that the milk is consumed in the raw state.

    Since the regions where people have the tradition of fresh camel milk consumption are developing or semi-developed countries, they do not have proper refrigeration facilities during the milking process and transportation.  Moreover, milk is often kept in high ambient temperature, increasing the risks of C.jejuni growth.  The bacteria can get into the milk by cross contamination through feces or directly from the udder of the camel into the milk during milking. A study estimating the illness from the consumption of C.jejuni-containing milk showed that the more you drink, the more you are likely to get sick (obvious). However, one interesting finding was that men are more vulnerable of getting the illness from the bacteria than women.

    Despite of poor hygienic measures in camel milk production, no outbreak has been reported in Saudi Arabia area. A study notes that the survival of Campylobacter bacteria is low in the intestinal tracts of camels due to high concentration of hydrogen gas present in the rumen. Thus, camel milk may not be a major source of Campylobacter bacteria infections. Instead, pathogens like Salmonella and Staphylococcus aureus were detected in larger numbers.

    Nonetheless, the fecal samples collected from the camels did contain Campylobacter, even though it was a very small number. Poor handling of the camel milk would result in higher chances of the bacteria growth. Pasteurization processes or acid fermentation are recommended as preventative measures.

    As people’s interest is growing in camel milk, more studies are to be done in the future to figure out the exact benefits of the food and the methods to prevent any foodborne pathogens including Campylobacter. For now, establishing a formal microbiological standards regarding camel milk should be prioritized, since there are none.

     

     

    Some interesting videos:

    Curious about the taste?

    Camel milk cures Autism!?

     

    Kathy Kim

     
    • csontani 12:44 pm on October 9, 2015 Permalink | Reply

      This is actually very interesting. I didn’t know that people would consume camel’s milk. If the nutrition content is similar to human’s milk, I wonder if the taste is similar as well? If businesses started processing camel milk and adding flavours to it, I think that it would become a big thing especially that it helps with diabetes, autism and allergies (what allergies though?).

    • Lauren Rappaport 6:33 pm on October 9, 2015 Permalink | Reply

      I was not aware that camel milk had such a high nutritional content and even had some therapeutic benefit as well. However, consuming raw milk is a huge issue because of the risk of food borne illness associated with bacterial contamination of the milk. I wonder if camels milk were to be pasteurized if it would lose some of its nutritional value due to heat sensitive nutrients and thus its appeal?

    • Yi Chen Teh 11:00 pm on October 9, 2015 Permalink | Reply

      I personally think that it is fine to consume camel’s milk as cow’s milk is not easily accessible everywhere especially in the Qatar and Saudi Arabia regions. However, people should be well educated in regard to the potential health consequences of consuming raw milk and effective intervention strategies should be introduced and enforced to combat against the growth of Campylobacter in camel’s milk. This can potentially be achieved by investing in more refrigeration facilities and also making it mandatory for all milk products to be pasteurized. In addition, I am just wondering besides acid fermentation, are there any other ways to prolong the shelf life of milk without the use of refrigeration facilities (since they do not have proper refrigeration facilities)?

    • Yi Chen Teh 11:11 pm on October 9, 2015 Permalink | Reply

      I personally think that it is fine to consume camel’s milk as cow’s milk is not easily accessible everywhere especially in the Qatar and Saudi Arabia regions. However, people should be well educated about the potential consequences of consuming raw milk and effective intervention strategies should be introduced to combat against the possible growth of food borne pathogens in camel’s milk. This can be done by investing in more refrigeration facilities and making it mandatory to pasteurize all milk products before they reach the consumers.On another note, I am just wondering besides acid fermentation, are there any other ways to prolong the shelf-life of milk while adhering to the food safe standards without the use of refrigeration facilities (since most household residents couldn’t afford to buy a refrigerator)?

    • yichen25 11:12 pm on October 9, 2015 Permalink | Reply

      I personally think that it is fine to consume camel’s milk as cow’s milk is not easily accessible everywhere especially in the Qatar and Saudi Arabia regions. However, people should be well educated about the potential consequences of consuming raw milk and effective intervention strategies should be enforced to combat against the possible growth of food borne pathogens in camel’s milk. This can be done by investing in more refrigeration facilities and making it mandatory to pasteurize all milk products before they reach the consumers. Lastly, I am just wondering besides acid fermentation, are there any other ways to prolong the shelf-life of milk while adhering to the food safe standards without the use of refrigeration facilities (since most household residents couldn’t afford to buy a refrigerator)?

    • jas900 11:50 pm on October 9, 2015 Permalink | Reply

      Despite the health claims above, I am unconvinced that camel milk is a superfood. Management of diabetes depends on both physical activity and obtaining nutrients from a variety of food sources. With unregulated commercialization, there are many avenues along the food supply chain where pathogens, other than Campylobacter spp., could be introduced to raw milk. Health costs would greatly outweigh the nutritional benefits, which ultimately defeat the therapeutic purpose of camel milk. However, camel milk has the potential to be marketed as a nutritious alternative to cow milk after the fresh milk has been treated, e.g. pasteurization. Fortification could also be employed to compensate for the nutrients lost during processing.

      It was interesting that Kathy noted no reported Campylobacter spp. outbreaks in Saudi Arabia from camel milk. This could be due to poor surveillance programs or the lack of reporting. Since locals use camel milk as a nutritious and traditional food source, would they have a higher concentration of antibodies and appear asymptomatic to foodborne diseases?

      Jasmine Lee

    • amreenj 4:14 pm on October 10, 2015 Permalink | Reply

      Really interesting post, Kathy! I have heard about the use of raw camel milk in some Middle Eastern countries for the treatment of many ailments including cancer. After doing some further reading into this topic, I found a few more articles which reported benefits from the consumption of raw camel milk. As we have learned, having no kill step (ie. no pasteurization) can allow for the growth of microbes that when consumed can cause sickness. I wonder if camel milk is also consumed by young children? Since children don’t have a fully established natural microflora, the microbes in camel milk may be able to establish and outcompete the natural bacteria present in the the GI, making the child severely ill. Are there any regulations surrounding this?
      I have to agree with Jasmine, it seems as though the potential harm that could be done, outweighs the benefits that may be seen as a result of the consumption of the milk. I am also wondering if the people who regularly consume this milk have some sort of resistance towards the bacteria preventing them from getting sick, perhaps a potential explanation for the low occurrence of FBI in Saudi Arabia.

    • SilviaLow 11:59 pm on October 10, 2015 Permalink | Reply

      Interesting blog! Personally, i think camel milk would be a successful dairy alternative in the developed world (if we don’t make it a taboo product!) since it is lower in fat, higher in iron, etc. than cow’s milk. Also, developed nations have more resources to process, pasteurize, store, market, etc. this product. On the other hand, perhaps the lower fat content is not as desirable for the health of the greater population of a less developed nation. This is especially true for infants who require higher fat content and not to mention that these potential bacterial contamination are most harmful to young children. I guess it’s true with the saying that “we want what we can’t get/don’t have.”

    • NorrisHuang 10:44 pm on October 12, 2015 Permalink | Reply

      Very interesting. I haven’t heard about camel milk consumption before. I agree with Silvia that developed countries are better able to handle/process camel milk but I also wonder how that can be transported, for example, from Saudi Arabia to North America. I also read from another article that camel milk is low in lactose (compared to cow milk), which could make it popular among consumers who are lactose intolerant.

    • wen liao 2:30 pm on October 16, 2015 Permalink | Reply

      This is actually a vert interesting article. I have never thought of drinking camel milk nor have I known camel as a potential reservoir for C. jejuni. I have tried goat milk before, and the taste was not very pleasing, so I wonder what does camel milk taste like? Like Norris said, if camel milk in low in lactose, it would be a really good source of nutrient for those that are lactose intolerant. However, I just have a question: in your article, you have only mentioned that C. jejuni was isolated from camel feces and that due to the presence of H2 in the camel gut, the concentration of Campylobacter is actually not too high. So what is actually the concentration of Campylobacter in camel milk and will it actually pose a threat to human? Besides, we know that Campylobacter is fragile when it is not in the animal gut.

    • KristinaRichmond 6:48 pm on October 16, 2015 Permalink | Reply

      Interesting article! I was also not aware of the proposed therapeutic effects of camel milk, but I think this is an important factor to think about in terms of food safety because of the people who will be attracted to consuming it for these reasons. In our lecture we learned that most fatal infections occur in infants, the elderly or immune-suppressed people, so I think it’s highly likely that people looking for the therapeutic effects could also be among this vulnerable group of individuals. In that case, it would be important to have better food safety procedures or clear warnings of the risks of drinking the milk. It wouldn’t be good for people to drink the milk looking to help one disease only to get really sick from Campylobacter.

    • EmilyLi 12:37 am on October 17, 2015 Permalink | Reply

      I found this to be a very interesting article. I wonder if camel milk can be a good nutritious food source if it is handled and processed adequately. Since it was mentioned that camel milk is similar to human milk in term of nutrients content, for the people who live in the Asian area may be unable to obtain cow’s milk for consumption, this may provide a good alternative. Campylobacter (jejuni) was consider a more “fragile” bacteria. I think processing intervention can easily get rid of the bacteria for safe consumption. However we still need to deal with the other bacteria related to foodborne illness in the camel milk.

    • shinnie 4:20 pm on November 20, 2015 Permalink | Reply

      They should really consider importing these milk to Canada! I’m sure health-focused Canadians would be interested in giving camel’s milk a taste. It has actually been reported that camels are a carrier of the coronavirus that is known to cause Middle East respiratory syndrome (MERS). As a fun fact, people actually also drink camel urine (can you imagine how it will taste?!) and the WHO is greatly against it and has been warning people not to do that. Camel milk is also a carrier of the Brucella bacterium and these bacteria can cause Brucellosis in humans. People are taking quite a risk drinking camel milk raw. To go back to our topic of Camypobacter, it’s best for young children, elderly, immunocompromised indivuduals to stay away from drinking raw camel milk because complications from campylobacteriosis can occur.

    • AngeliMalimban 9:42 pm on December 14, 2015 Permalink | Reply

      My thinking is that it is probably cheaper to have camel’s milk than cow’s milk in those regions considering there are likely more camels around. I wonder why the governments there have not considered actually pasteurizing the milk considering it’s popularity.

      I also read another article about someone who ended up drinking camel milk for a month (https://au.news.yahoo.com/sunday-night/features/a/25468433/i-drank-camel-milk-for-a-month-heres-what-happened/). Like you mentioned in the article, this is popularly consumed raw, and the woman who did this challenge also mentioned that she was sold this raw. People believe that the effects are so much better if so – that could be why pasteurization has not been thought of [in terms of these two countries]. In the end, the woman claims that her digestion is a lot better and that it even shrunk her stomach appearance. Placebo effect or is it real? I guess we will never know unless we specifically study the science behind it.

    • EmilyChow 4:15 am on December 15, 2015 Permalink | Reply

      Interesting topic! In countries where camel’s milk is popular, such as Qatar, pasteurization may not be a priority because this milk is traditionally consumed raw and the people in these regions have perhaps developed immunity to possible infection of Campylobacter. In addition, pasteurization is costly and time consuming so this processing may not be feasible in these regions. I think camel’s milk would spark interest in consumers in North America since there are many nutritional benefits and it also serves as an alternative to cow’s milk! I have never seen camel’s milk sold in Canada but I assume that if the products were to be imported and sold in local grocery stores, there would be regulations to ensure that this milk is pasteurized. On the other hand, I wonder if the nutritional value of camel’s milk would change after pasteurization?

    • JorgeMadrigalPons 11:34 am on December 15, 2015 Permalink | Reply

      Interesting, I didn’t know camel milk was that popular. Although, consuming unpasteurized products is a a serious issue, contamination with pathogens is very likely to occur. In my opinion, it is better to consume less nutritious products, but safe, than consuming products that will cause diseases, like the milk with campylobacter.

  • meggyli 9:04 pm on October 7, 2015 Permalink | Reply
    Tags: Campylobacter,   

    Debate: The Risks of Black Market Raw Milk against the Risks of its Legal Consumption in Australia 

    Raw milk is defined as milk that has not been pasteurized or homogenized. Unpasteurized milk can become contaminated with pathogens such as salmonella spp., E. coli, and especially, Campylobacter jenuni. It has been a century-long global debate on whether or not the dangers of consuming unpasteurized milk is enough to justify its sales prohibition in major countries.

    Availability and regulation of raw milk vary from region to region. In Australia, the sale of raw milk for consumption purposes is illegal in all states and territories, as is raw milk cheese with the exception of hard raw milk cheese. However, this has been somewhat undermined by legally selling raw milk as bath milk or pet milk. Ironically, the container in which you can purchase bath milk from looks exactly the same as you would purchase pasteurized milk. Despite raw milk’s legislative ban, Australian cheese maker Bowden has remarked that, “whether it’s legal or not, people are buying and drinking raw unpasteurized milk.” Several incidents associated with drinking unpasteurized milk in Australia has reached the headlines, including the death of a toddler in 2014.

    Beverage? Cosmetics? Who knows!

    Some decades ago, the common practice when it comes to milk consumption was that you would walk over to your neighboring farm, pump some milk out of the grazing cows into a bottle, and drink it fresh. Drinking raw milk is considered by many health experts as the only correct way milk should be drunk, as the beneficial bacteria Lactobacillus acidophilus is still present in raw milk, along with many essential vitamins, including A, C, B6, and B12, as well as minerals and enzymes.

    Unfortunately, the sale prohibition on raw milk isn’t in line with all consumers in Australia, and whenever there are profitable goods for sale that’s banned by the government, the sales move underground and black markets come in. Black markets elevates the issues associated with raw milk consumption by sneakily packaging raw milk as cosmetic milk and selling them at local farmers’ markets or roadside stands. The concern with black market sales is that there is no transparency or after-sale support for the customers. Labelling for merchandise at these places are also not under strict regulations, so many consumers may not even be aware of what is exactly in the bottle they just purchased. In the end, it really comes down to understanding the risk consuming raw milk poses. Bowden advocates the legalization of selling raw milk under tight regulations, including consumption shortly after production, and possibly selling in conjunction with a bacteria-testing kit.

    The problem that can occur with consuming raw milk comes mostly from not treating it in the most hygienic and/or proper manner. Degeling from Centre for Values, Ethics and Law in Medicine (VELiM) remarked that large scale production could exacerbate problems, because “often the milk from a lot of cows are mixed together and it only takes one breakdown in the hygiene and bio-safety measures in the milking of one cow for the whole batch to be contaminated.” Currently, the Food Standards Australia (FSA) are beginning to recognize the increasing demand for raw dairy and are in the process of assessing the requirements that dairy plants would need to satisfy in order to safely produce and sell raw milk.

    Please click here for the original article if you are interested. 🙂

    So now the question is: should raw milk on day become legalized in Australia, or even in other countries? And if not, what steps can be taken to ensure the legislation will be enforced? What do you guys think?

    Meggy Li

     
    • SusannaKo 10:24 pm on October 7, 2015 Permalink | Reply

      Personally I don’t think raw milk should be legalized in Australia. However, I know that there are a lot of raw milk advocates. To appease them, I would recommend a warning label, similar to those found on cigarette packages, that would say “consumption of raw milk is linked to diseases that cause kidney failure, gastroenterities etc”. Some steps that can be taken to ensure the legislation is enforced is to have farms registered (so a record can be kept), and have food inspectors search the web for “cow shares” in which there is raw milk available. Also, having information available on Government websites about the risks involved with raw milk consumption might help too.

    • Michelle Ebtia 10:14 am on October 13, 2015 Permalink | Reply

      I personally know of parents who insist on feeding their infants raw cow’s milk, as they believe it would lead to less severe allergic reactions and better tolerance by their infants. However, studies suggest that there is no evidence to support this claim (Høst,1994). The bigger problem this would pose on the health of infants who are fed raw cow’s milk is the unregulated levels of pathogenic microorganisms present in the milk, as mentioned by Meggy. A quick research in the literature shows other types of raw milk are quite risky as well, for example it has been shown that raw goat’s milk can cause Toxoplasmosis in infants(Riemann et al. 1975). With such great risks and minimal benefits, it seems that the current ban on the sale and consumption of raw milk makes a lot of sense.

      Høst, A. (1994). Cow’s milk protein allergy and intolerance in infancy Some clinical, epidemiological and immunological aspects. Pediatric Allergy and Immunology, 5(S6), 5-36.

      Riemann, H. P., Meyer, M. E., Theis, J. H., Kelso, G., & Behymer, D. E. (1975). Toxoplasmosis in an infant fed unpasteurized goat milk. The Journal of pediatrics, 87(4), 573-576.

      • Carissa Li 12:09 am on October 17, 2015 Permalink | Reply

        When there is something being banned, there is always someone who try to break the law! Therefore, getting the regulation strict is a very important step to make in order to control the selling of raw milk to people. However, to really stop the consumption of raw milk, we need to let everyone knows why it is being banned. Some people don’t understand the potential risk of drinking raw milk since they never get any food poisoning which leads to people not following the rules. With good reasoning and education, people will understand the reason for setting laws and follow them.

    • Carissa Li 11:07 pm on October 16, 2015 Permalink | Reply

      When there is something being banned, there is always someone who try to break the law! Therefore, getting the regulation strict is a very important step to make in order to control the selling of raw milk to people. However, to really stop the consumption of raw milk, we need to let everyone knows why it is being banned. Some people dont understand the potential risk of drinking raw milk since they never get any food poisoning which leads to people not following the rules. With good reasoning and education, people will understand the reason for setting laws and follow them

    • Carissa Li 12:08 am on October 17, 2015 Permalink | Reply

      When there is something being banned, there is always someone who try to break the law! Therefore, getting the regulation strict is a very important step to make in order to control the selling of raw milk to people. However, to really stop the consumption of raw milk, we need to let everyone knows why it is being banned. Some people dont understand the potential risk of drinking raw milk since they never get any food poisoning which leads to people not following the rules. With good reasoning and education, people will understand the reason for setting laws and follow them.

    • Carissa Li 12:09 am on October 17, 2015 Permalink | Reply

      When there is something being banned, there is always someone who try to break the law! Therefore, getting the regulation strict is a very important step to make in order to control the selling of raw milk to people. However, to really stop the consumption of raw milk, we need to let everyone knows why it is being banned. Some people don’t understand the potential risk of drinking raw milk since they never get any food poisoning which leads to people not following the rules. With good reasoning and education, people will understand the reason for setting laws and follow them.

    • ayra casuga 10:51 am on October 24, 2015 Permalink | Reply

      This article is very intriguing as the topic of selling raw milk has always been controversial. Primarily because although the risk factors are obvious (Food-borne pathogens), there is no general consensus of the benefits of consuming raw milk. Michelle’s comment about parents feeding their infants raw milk is very interesting as I can see how some people would find that absurd, while I can also see how one could rationalize feeding infants raw milk. Providing infants in a young age with raw milk may be able to strengthen their food bacteria tolerance by building their child’s microflora in their gut with a variety of bacteria. I remember learning in my MicBIO202 class that theres a correlation between children’s gastrointestinal system to be “too clean” and an increase in allergies present in children. So by exposing them to some harsher bacteria may be beneficial, although the risks are high.

      In terms of viability of selling raw milk, I believe that selling raw milk should be allowed, although the suppliers of raw milk must undergo more stringent regulations in their procedure. I believe that by banning raw milk will cause some small suppliers to want to sell it in the “black market”, which would be more dangerous as the supplier might not have prepared it in the cleanest way possible. With the high demand of raw milk, it is impossible to eliminate the demand by banning its supply, if anything that would increase the demand and producers would start selling it under the table.

      Therefore, I think a good solution would be that suppliers would need to have a specific license in order to sell raw milk and thus would obtain a special “raw milk certified label”. Analogous to how farmers would need a “Regulated organic license” in order to sell their produce as organic. That way, the suppliers would undergo strict regulations in order to maximize food safety in their raw milk products, and consumers would trust that their raw milk is produced by the highest quality.

    • cvalencia 4:27 pm on December 4, 2015 Permalink | Reply

      I also think the consumption of raw milk is quite dangerous, but I had a friend who visited Nepal, and lived there with the locals. She said that the family gave her raw cow’s milk to consume, and she did. Thankfully she did not get sick at all. I also think that it depends upon the person, whether they have been brought up drinking raw milk (and therefore have immunity against potential bacteria in it). However, I will personally not take the risk of consuming raw milk, especially with the associated risks involved.

    • DeniseZhang 9:24 pm on December 15, 2015 Permalink | Reply

      I think this post is really interesting. I personally appreciate the freshness of foods, therefore I like eating salads, raw oysters, sashimi, etc. However, when the same situation comes to milk, I will say no to unpasteurized or raw milk. I know that these fresh raw milk have a greater chance to contain pathogens and it has definitely more cons than pros.

      In the meanwhile, I somehow understand that the reason why the regulation of raw milk is not that restrict in Australia, as there is still large portion of people believe that drinking raw milk is better. Considered that, I think officials can make difference firstly by changing packages of raw milks and labelling them clearly. Then officials can work on letting public know more about the risks of consuming raw milk.

      Working step by step, I believe eventually people will start giving up drinking raw milk 😀

  • CandiceZheng 9:15 pm on October 6, 2015 Permalink | Reply
    Tags: Campylobacter,   

    Poop on birds: A survey of Campylobacter on fresh chicken in the UK 

    The year-long survey of Campylobacter on fresh chicken by the UK Food Standards Agency (FSA), which is carried out during the period from February 2014 to February 2015, reported the levels of Campylobacter found on fresh chickens sold in the UK. The final report was released in May, 2015, and it included the results represented by major retailers all over the UK.

    Campylobacter has become the most common cause of bacterial food poisoning in the UK, which can cause gastrointestinal infections such as bloody diarrhea and dysentery syndrome like cramps, fever, and pain. Poisoning usually develops a few days after eating contaminated food, and the most common routes of transmission are fecal-oral.  Raw poultry, being the most common food vehicle responsible for the transmission contributes to 4 in 5 cases of campylobacter food poisoning in the UK.

    According to the results from the report, during the tested period,

    • 19% chickens tested positive for campylobacter within the highest band of contamination (greater than 1,000 colony forming unit per gram (cfu/g) on each sample)
    • 73% of chickens tested positive for the presence of campylobacter (i.e. contained campylobacter at a level above the detectable limit of 10 cfu/g)
    • 0.1% (5 samples) of packaging tested positive at the highest band of contamination
    • 7% of packaging tested positive for the presence of campylobacter

    (If you are interested in more details about the report, please refer to the full report at   A microbiological survey of Campylobacter contamination in fresh whole UKproduced chilled chickens at retail sale – February 2014 to February 2015)

    However,  above results seem not to be optimistic provided that the UK government and industry have targeted  for reduction of Campylobacter in the chickens produced in UK poultry slaughterhouses that have the highest level of contamination (i.e. those with more than 1,000 cfu per gram) from a baseline of 27% in 2008 to 10% by 2015 ever since 2010. (read more at the Joint Government and Industry Target to Reduce Campylobacter in UK Produced Chickens by 2015 December 2010)

    Under such circumstances, to further reduce campylobacter levels in raw chicken and improve the food safety in the UK, the FSA initiated the ‘Chicken Challenge’ during the summer of 2015, and encouraged the public to share messages that demonstrate proper food handling methods to their family and friends. For example, the message saying “store raw chicken separately from other food, covered and chilled on bottom shelf of fridge” would prevent cross contamination and help limit the growth of Campylobacter. For more good demonstrations and some other fun activities you can visit the home page of the  ‘Chicken Challenge’.

    Finally, back to our daily life, there are certain things you can do to avoid Campylobacteriosis (Campylobacter poisoning). Campylobacter is actually very heat sensitive and can be destroyed with thorough heating process. Your chicken is safe as long as you follow good kitchen practice:

    • Cover and chill raw chicken: Cover raw chicken and store them on the bottom shelf of the fridge so that the juices can’t drip on to other foods and contaminate them with Campylobacter.
    • Don’t wash raw chicken: Cooking will kill any bacteria present in the raw chicken, including Campylobacter. However, if you wash them in your sink, splashing of water will spread the germs.
    • Wash hands and use utensils: Thoroughly wash and clean all utensils that contact the raw chicken, such as chopping boards and surface used to prepare raw chicken. And thoroughly wash your hands with soap and warm water after handling raw chicken. Such practice can help prevent cross contamination.
    • Cook chicken thoroughly: Make sure chicken is steaming hot all the way through before consuming. It is always better to check that the thickest part of your chicken is steaming hot with no pink meat and the juices run clear.

    Check out the video below to become a ‘Chicken Hero’!

    Wish you all have a safe one without any food poisoning 🙂 LOL

    Candice Zheng

     
    • Barbara Correia 7:05 pm on October 11, 2015 Permalink | Reply

      I am surprised that, even though the UK government authorities and food companies targeted the reduction of Campylobacter in chicken products, the number of products that tested positive for this bacteria was still very high. I liked a lot your tips for avoiding cross-contamination from raw chicken and I believe that one of the best ways to combat Campylobacter outbreaks from raw chicken is spreading information to people, so that they make sure they cook properly the chicken (as Campylobacter is sensitive to high temperatures) and avoid contaminating other foods.

    • Barbara Correia 7:11 pm on October 11, 2015 Permalink | Reply

      I am very shocked that, even though the UK authorities worked in order to reduce Campylobacter from raw chicken and, therefore the major source of foodborne diseases caused by Campylobacter, their plan of action still failed and a lot of the raw chickens tested positive for the presence of this bacteria. Therefore, I believe that right now the best way to prevent outbreaks of foodborne diseases caused by Campylobacter from raw chicken sources is to warn and inform people that they should cook properly the chicken and hoow to avoid cross-contamination, and that is why I found your tips very important.

    • angel519 1:27 pm on October 12, 2015 Permalink | Reply

      The food industry plays an important in ensuring food safety in our community, however, the government also have a great impact on this field. The “Chicken Challenge” in the UK is a great example of the government educating the public to have good food safety practice. It is crucial for the public to recognize that improper food handling can lead to foodborne illnesses, and they are ways they can improve their handling practice to reduce the chance of food poisoning.

    • WinnieLiao 10:53 am on October 13, 2015 Permalink | Reply

      Campylobacter with chicken has been the top of the list combination for causing food borne illnesses resulting in QALY loss. Even in Canada, this pathogen has been found to be responsible for approximately 8% of the annual food borne illnesses. It is helpful for the general public to know about the common procedures we can do to prevent the spread of these organisms into other foods. One that comes to my attention is to wash the chicken. Many would think that washing chicken could possibly be beneficial in terms of food safety. However as said in the blog, this could lead to cross contamination and can potentially be another safety hazard. The chicken challenge, as established by the government, provides a great platform for the public to investigate into more food safe knowledge. Not only is this knowledge helpful for dealing with Campylobacter, but it can also be essential for effectively treating other foodborne pathogens in food. To conclude, food safety is also in our hands!

    • YueDai 11:48 am on October 16, 2015 Permalink | Reply

      Ensuring food safety in our community is the top responsibility of food industry and food-related government agencies, but it also requires public awareness and correct food handling at the household level. Some tough food safety challenge, like Campylobacter in raw chicken in this blog, can be easily controlled by good kitchen practice. In these circumstances, it may be more cost-efficient for governments to invest in public food safety education. Also, lots of common food pathogens share the same prevention methods in home kitchens. Cooking food thoroughly is a really good example.

    • YaoWang 12:39 pm on October 16, 2015 Permalink | Reply

      It’s quite amazing that although the UK government has taken some steps to reduce Campylobacter in the chickens produced in UK poultry slaughterhouses with more than 1000 cfu/g from 27% to 10% by 2015, the actual level is still 9% higher than expected. But it’s a great idea for them to encourage the public to share messages that demonstrate proper food handling methods to their family and friends. I like the tips you provided for good kitchen practice though, especially the second one “don’t wash raw chicken”. My family actually always wash raw chicken thoroughly over the sink before cooking, which is completely wrong. Good reminder! Thanks!

      • CandiceZheng 2:11 pm on October 16, 2015 Permalink | Reply

        As a food scientist you should definitely prevent your family from doing that lol! Thanks for your comment!

    • SunnyHuan 2:18 pm on October 16, 2015 Permalink | Reply

      Wow, nice to know that there is no need to wash the raw meat before cooking, and washing raw meat could cause cross contaminzation and become a food safety issue.

    • YaoDongYu 2:20 pm on October 16, 2015 Permalink | Reply

      It is hard to believe that campylobacter levels after a few years if UK government regulation and control (since 2008) still have such significant test results. These information should definitely be emphasized to the public to advertise safe handling of raw chicken (in general, people tend to believe chicken are safer than raw pork and beef)

    • Stephanie Chen 4:12 pm on October 16, 2015 Permalink | Reply

      Despite the UK government’s aims to reduce Campylobacter in chickens produced in the UK and even sets targets to carry this out, the ultimate goal is to reduce the number of human infections. Success of meeting their targets relies on government policies and the industry, but it really comes down to the consumers being able to reduce the risk of Campylobacteriosis through safe food practices themselves. I like the UK government’s idea of the Chicken Challenge which gives very practical advice and an opportunity for the population to be involved in helping to reduce food-borne illness caused by Campylobacter. I enjoyed the campaign video as well and think it is a great and very creative way to educate kids who are even more vulnerable to this bacteria.

    • Stephanie Chen 4:26 pm on October 16, 2015 Permalink | Reply

      Despite the UK government’s aim to reduce the level of Campylobacter on poultry produced in the UK and even sets targets to achieve this, the ultimate goal is to reduce the number of human infection. To achieve this target relies on government policies and the industry, but the reduction of Campylobacteriosis really comes down to the consumer’s safe food practices themselves. I really like the UK government’s idea of the Chicken Challenge which gives very practical advice and an opportunity for the population to be actively involved in helping to reduce food-borne illnesses caused by Campylobacter. I also enjoyed the campaign video and think it is a great and very creative way to educate kids who are even more vulnerable to this bacteria.

    • Stephanie Chen 4:27 pm on October 16, 2015 Permalink | Reply

      Despite the UK government’s aim to reduce the level of Campylobacter on poultry produced in the UK and even sets targets to achieve this, the ultimate goal is to reduce the number of human infection. To achieve this target relies on government policies and the industry, but it really comes down to the consumer’s safe food practices themselves. I really like the UK government’s idea of the Chicken Challenge which gives very practical advice and an opportunity for the population to be actively involved in helping to reduce food-borne illnesses caused by Campylobacter. I also enjoyed the campaign video and think it is a great and very creative way to educate kids who are even more vulnerable to this bacteria.

    • ya gao 8:21 pm on October 16, 2015 Permalink | Reply

      It is shocking to see that with all these work the government had done, the reduction of contamination of Campylobacter on poultry products is minimal. The data 1000cfu/g Campylobacter on sample is another shock. It is sad to see with all the regulations, policy, QA and QC in place, food safe is still a big threat in our society that is threatening citizens’ life. Despite the fact that we should work harder to improve our food processing procedure to possess minimal risk, citizens should learn essential food handling skill to prepare food safely. For the food handling tips present in this blog, I am surprising to see that we should avoid washing raw chicken before cooking. I used to do that all the time. Thanks for the helpful tip that I could learn from your post Candice!

    • Stephanie Chen 10:38 pm on October 16, 2015 Permalink | Reply

      Although the UK government aims to reduce the level of Campylobacter on poultry produced in the UK and even sets targets to achieve this, the ultimate goal is to reduce the number of human infection. To achieve this target relies on government policies and the industry, but it really comes down to the consumer’s safe food practices themselves. I really like the UK government’s idea of the Chicken Challenge which gives very practical advice and an opportunity for the population to be actively involved in helping to reduce food-borne illnesses caused by Campylobacter. I also enjoyed the campaign video and think it is a great and very creative way to educate kids who are even more vulnerable to this bacteria.

    • Alex Shen 10:37 am on October 17, 2015 Permalink | Reply

      Thanks for this great post! Although I found the test sophisticated to me, the conclusion here is rather useful: cook the chicken thoroughly. Saves me some time washing raw chicken:)

    • YueDai 8:27 pm on October 17, 2015 Permalink | Reply

      Ensuring food safety in our community is the top responsibility of food industry and food-related government agencies, but it also requires public awareness and correct food handling at the household level. Some tough food safety challenge, like Campylobacter in raw chicken in this blog, can be easily controlled by good kitchen practice. In these circumstances, it may be more cost-efficient for governments to invest in public food safety education. Also, lots of common pathogens in food share the same prevention methods in home kitchens. Cooking food thoroughly is a really good example.

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