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.
On my momentous 15th birthday, I’m eager for an outpouring of heartfelt birthday wishes
Celebrating milestones isn’t unique to people; our furry companions maintain a particular place in these celebrations too. As your loyal companion hits the exceptional milestone of 15 years, it’s a momentous event that’s worthy of recognition and celebration.
For a lot of dog house owners, the bond with their pet transcends the boundaries of mere possession. It’s a journey marked by love, loyalty, and shared experiences. Watching your canine pal develop from a playful pup right into a sensible and cherished companion is nothing in need of a exceptional journey.
The years have woven a tapestry of reminiscences – from the mischievous pet antics to the comforting presence throughout each joyous and difficult instances. Every wag of the tail, each excited bark, and the mild nuzzle in opposition to your hand tells a narrative of unwavering companionship.
At 15, your dog may be slowing down a bit, however the sparkle of their eyes and the heat of their coronary heart stay unchanged. Their presence is a testomony to the enjoyment they carry, the teachings they educate about resilience, love, and the straightforward pleasures of life.
Celebrating this milestone isn’t simply in regards to the variety of years; it’s a mirrored image of the shared experiences, the teachings realized, and the unstated bond that phrases can not totally encapsulate. It’s in regards to the numerous walks, the video games of fetch, the quiet moments of solace, and the unconditional love that has crammed your own home.
As your dog turns 15, it’s a possibility to cherish every second collectively. It’s a time to reminisce in regards to the laughter, the cuddles, and the adventures embarked upon aspect by aspect. It’s about acknowledging the significance of their presence in shaping your life.
So, whether or not it’s a particular deal with, an extra-long stroll, or just spending high quality time collectively, celebrating your dog’s fifteenth birthday is a tribute to the enjoyment they’ve introduced into your life. It’s a celebration of their timeless spirit, their unwavering companionship, and the profound influence they’ve had in your coronary heart. Cheers to your furry pal and to the numerous reminiscences but to be made within the years forward!
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