Tag Archives: dogs

The pUgly Truth About Flat-Faced Dogs

Image of a pug

Pugs are universally loved and instantly recognizable; yet their iconic face may be the reason for many of their health issues. Courtesy of Charles

Dogs unite and bring joy like little else can.  The sight of their cute noses snuggling up to us can make us feel better and melt even the steeliest of hearts, yet their little snouts may be one of the biggest problems hounding the health of our furry family members.

Pugs are one of the most instantly recognizable dog breeds in the world because of their flat snouts. Like other dogs with flat snouts, pugs are known as brachycephalic and suffer from numerous breathing complications. One of the most fatal of these complications is brachycephalic syndrome and occurs during times when a dog overexerts itself due to excess activity or heat and is not able to oxygenate its blood in time, leading to death.

Most people think that susceptibility to this disease depends on breed, however research published in 2015 by a team from the Royal Veterinary College in the UK suggests otherwise. The researchers looked at 700 dogs of varying breeds and found that the risk of these dogs suffering from brachycephalic obstructive airway syndrome increased very quickly for dogs with shorter snouts. In the study, no dog whose snout was at least half the size of its head was affected with breathing issues, while 80% of the dogs whose snout was less than a tenth of the size of their head suffered. The research seems to present definitive evidence for the added health risks for flat faced dogs, yet the number of pet owners that buy these breeds increase daily.

Many Dogs

Note the differences in how the snout portrudes in the breeds of dog pictured above. Courtesy of Wikimedia Commons

The shape of an organism is hugely important in the wild. Species live and die based on how well their adaptation suits their environment. However, dog breeds are unique. Due to our close relationship with the species, new dog breeds are usually the result of artificial breeding. Short snouts are specifically bred for in dogs because some people love how it looks. While individuals are certainly within their rights to choose to adopt a dog whose aesthetic they like, it seems cruel to subject a living animal to a lower quality of life in order to preserve their look. As the demand for these cute animals increases, unethical or unqualified breeders are pushing these genetic lines to the extreme in order to provide a product that they think consumers want.

For a solution to this issue to be effective it must change some of our fundamental buying behaviours. We cannot let the idea of genetics being a product completely overrule the idea of a dog as a living, breathing organism with rights. Dogs provide us with unconditional love and companionship, the least that we could do for them is make sure that they can breathe properly.

Finally, I have attached a link for owners of dogs with flat faces with helpful videos to help you identify abnormal noises in times of exertion from your dog.
Cambridge University Department of Veterinary Medicine

– Souvik Maiti

Dogs: more than just cute!

Angus, one of two “super sniffer” dogs trained to alert their handler when they detect C. difficile. Source: Vancouver Coastal Health

We’ve all seen (or heard of) drug-sniffing dogs, but what about bacteria-sniffing ones?

Since 2016, a team from Vancouver Coastal Health has been tweaking a program that trains dogs to alert their handlers when they detect the scent of C. difficile. Over an 18-month period, the two dogs (Angus and Dodger) that have been trained for this role have detected 391 areas at Vancouver General Hospital where this bacteria was found.

Clostridioides difficile, more commonly referred to by its shorthand C. difficile or simply C. diff, are the leading cause of nosocomial (or hospital-originating) infectious diarrhea. Formerly known as Clostridium difficile, the bacterium was renamed late last year to more accurately portray the genus it falls in.

Angus and Dodger were trained with scent training kits from the Scientific Working Group on Dog and Orthogonal detector Guidelines (SWGDOG), which allowed them to identify the distinct odour of C. difficile. Microorganisms smell due to the variety of volatile chemicals they produce in response to various external factors. In the specific case of C. difficile, it is often described as having a sickly sweet or particularly foul smell.

The symptoms of a C. difficile infection can range from mild abdominal cramping to life-threatening sepsis and inflammation of the colon. The full range of symptoms can be found here. Most cases occur after taking antibiotics, which may kill both the good and bad bacteria in your gut – these are known as your gut microbiota. 

Without your normal gut microbiota, C. difficile can take advantage of this “clean slate” and proliferate in your intestine, throwing off the balance of good and bad bacteria. Within a period of several days to a few weeks, infected patients will start to show symptoms – the most common being diarrhea. Ideally, somebody with symptoms of infection will have tests done by a doctor and undergo treatment if necessary.

The progression of infection and the post-infection considerations are shown below in this graphic published by the Centre for Disease Control:

The progression of a C. diff infection. Source: Centre for Disease Control

In a study published by the Canadian Journal of Infection Control, it was found that 82% of contaminated surfaces were found in common areas. These included washrooms, hallways, and waiting rooms. Even with the most stringent sanitization procedures, it was relatively easy to find in areas that are commonly overlooked! 

One of the areas that tested positive for C. difficile contamination was inside a toilet paper dispenser – something that I personally would never think to sanitize. 

While there’s still a lot of work that needs to be done before we can train dogs to safely detect all sorts of infectious bacteria, the developments of the canine scent detection program are notable steps in the right direction. 

For more information about canine scent detection of C. difficile in Vancouver-area hospitals, you can learn more here and through this page.