Results indicated that not only can dogs detect Covid faster, but they can also do so in a non-intrusive manner – so no need to swab your throat or nose
Dogs can detect Covid-19 faster and more accurately than a PCR test, a new study shows.
Researchers looked at the ability of canines to recognise the virus and its variants, even when they are obscured by other viruses, like those from common colds and flu.
More than 400 scientists from over 30 countries contributed to the study as well as 147 scent dogs, according to the findings published in the Journal of Osteopathic Medicine.
After analysing many studies covering both field and clinical experiments, Professor Dickey and Junqueira found that dogs who are trained to sniff out scents are “as effective and often more effective” than antigen tests.
A total of 53 dogs were trained to sniff out Covid scents, while 37 were not and scientists found that the dogs that were not trained were in some cases “slightly superior” to those that were pre-trained.
“The previously untrained dogs have the advantage that they are not as prone to indicating on scents other than the Covid–19 associated scent,” the paper said.
The results indicated that not only can dogs detect Covid faster, but they can also do so in a non-intrusive manner. This means you won’t need to put a swab in your throat or nose.
How can dogs detect the virus?
This essentially comes down to the dog’s highly evolved nose with its ability to sense out smells quicker.
Dogs possess up to 300 million olfactory receptors in their noses, compared to about six million in humans. And the part of a dog’s brain that is devoted to analysing smells is about “40 times greater” than humans. Canines also have ‘neophilia’, which means they are attracted to new and interesting odours
And so, with all these enhancements, dogs can detect very low concentrations of odours associated with Covid infections.
“They can detect the equivalent of one drop of an odorous substance in 10.5 Olympic-sized swimming pools,” Professor Dickey said. “For perspective, this is about three orders of magnitude better than with scientific instrumentation.”
Scientists also found that in some cases, the animals were also able to detect the virus in pre-symptomatic and asymptomatic patients, “whose viral load was too low for conventional tests to work.”
Professor Dickey has said that dogs can also differentiate Covid and its different variants in the presence of other respiratory viruses. This included the common cold or flu.
“They’re much more effective. In fact, one of the authors that we quote in the paper commented that the RT-PCR test is not the gold standard anymore. It’s the dog. And they’re so quick,” he added. “They can give you the yes or no within seconds if they’re directly smelling you.”
How was the study conducted to see if dogs can really detect Covid-19?
In some studies, the dogs gave a person a quick sniff, sitting down to see if the person has Covid. In another study, the dog was given a sweat sample to smell for a few minutes.
The press release has said that scent dogs, such as beagles, basset hounds and coonhounds are the ideal candidates for sniffing out the virus, given their “natural tendencies to rely on odours to relate to the world.”
But the studies which the researchers analysed showed a variety of dogs were up for the challenge and were able to sniff out the Covid odour. With a few weeks of training, puppies, older dogs, purebred and mixed breeds, both male and female were able to sniff such odours out and “all performed admirably,” the Eureka Alert press release said.
Although there has been success with dogs detecting such viruses, researchers believe there are still many challenges with using dogs for medical diagnoses.
“There’s quite a bit of research, but it’s still considered by many as a kind of a curiosity,” said Professor Dickey.
In conclusion, Professor Dickey and Junqueira said after reviewing the studies, believe that scent dogs deserve “their place as a serious diagnostic methodology that could be particularly useful during future pandemics, potentially as part of rapid routine health screenings in public spaces.”
“Perhaps, most importantly, we argue that the impressive international quality and quantity of COVID scent dog research described in our paper for the first time, demonstrates that medical scent dogs are finally ready for a host of mainstream medical applications,” they added.
R.I.P. Frodo, The Last Surviving Dog Rescued From Michael Vick’s Dogfighting Ring
In 2007, a dark chapter in the world of animal cruelty came to light when authorities rescued 51 Pit Bulls from the Virginia home of Atlanta Falcons quarterback Michael Vick. These innocent animals had endured unimaginable abuse, subjected to beatings, electrocutions, hangings, drownings, and forced dogfights.
Out of this horrific ordeal, 48 resilient Pit Bulls emerged as survivors, thanks to the dedication of several rescue organizations and their forever families. One of these survivors, Frodo, recently passed away at the age of 15 on December 18th, 2021. Frodo’s journey serves as a testament to resilience, second chances, and the unwavering commitment of those who fight for justice and rehabilitation.
Frodo’s life was a stark contrast to the year he spent in hell at Michael Vick’s compound. Once rescued, he was embraced by a loving family and pampered like a prince for the next 14 years. His passing left a void in the hearts of those who knew and cared for him, particularly BAD RAP, an Oakland-based nonprofit animal protection group that played a pivotal role in advocating for and rehabilitating the Vick dogs.
In a touching Facebook post, BAD RAP bid farewell to Frodo: “To Frodo – We all adored him. He was one of the most valiant survivors we’d ever met.” His passing was peaceful, surrounded by the love of his family, who ensured his final moments were filled with comfort and care.
Frodo’s journey wasn’t just a personal triumph; it became a symbol of hope and resilience for Pit Bulls and dogs with difficult pasts everywhere. BAD RAP, with its extensive experience in working with dogs rescued from dogfighting rings, always believed in the potential for these dogs to be rehabilitated and reintegrated into loving homes.
Frodo’s story dispelled the negative stereotypes associated with Pit Bulls and underscored the transformative power of patience and kindness in a dog’s life. He exemplified the importance of early socialization for dogs rescued from cruelty incidents, showing that with the right environment and loving care, even the most timid and scarred animals can thrive.
Kim Ramirez, Frodo’s adoptive mother, shared insights into his journey, explaining how mechanical sounds and sudden movements used to terrify him. She described the challenges of helping Frodo overcome his past trauma, such as his fear of ceiling fans and microwave popcorn, which likely reminded him of the traumatic events he had witnessed.
Throughout his life, Frodo enjoyed the devoted care of the Ramirez family, who accommodated his needs, including transporting him in a stroller when his legs began to fail. His story was a testament to the healing power of love and the resilience of animals.
Frodo’s passing is a reminder of the enduring legacy of the 48 survivors of Michael Vick’s dogfighting ring. These brave dogs were given the opportunities they deserved, and despite their challenging backgrounds, they lived happy lives, proving that remarkable transformations are possible with compassion and commitment.
While Michael Vick’s actions were reprehensible, the high-profile case did raise awareness about dogfighting and its devastating consequences. It also shifted public perception of Pit Bulls, showcasing their potential for rehabilitation and adoption. Frodo and his fellow survivors are living proof that even in the darkest of circumstances, there is hope for a brighter future.
As we bid farewell to Frodo, we honor his memory and the countless animals who have found their second chance at life through the dedication of animal rights activists and the kindness of loving families. Frodo’s story will continue to inspire us to fight for justice, compassion, and a world where every animal can thrive.
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