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.
Touching the loyal dog who became a friend to guard the sleep of the little girl in the hospital bed, making millions of hearts melt, a Tale of Unconditional Love and Comfort.
In the world of unexpected and heartwarming connections, there are stories that touch our souls and reaffirm the incredible bonds between humans and their furry companions. This is the touching tale of a loyal dog who, in a hospital room, became not only a friend but a guardian, watching over a little girl as she slept, a narrative that has melted the hearts of countless individuals.
The story unfolds within the sterile walls of a hospital room, where a young girl was facing a challenging and often frightening medical journey. Her hospital stay was marked by uncertainty and discomfort, as she grappled with a condition that required extensive treatment. It was a time when the presence of a comforting friend became all the more important.
It was during this period that a furry companion entered the picture, bringing a ray of warmth and comfort to the young girl’s life. A loyal dog, known for its unwavering devotion to the family, found a way to be by her side. This remarkable canine not only sensed the little girl’s distress but also recognized her need for companionship and comfort.
As day turned into night, the little girl’s loyal friend took on a new role—a guardian of dreams. With gentle eyes and a caring heart, the dog curled up by her hospital bed, its presence serving as a comforting reassurance. Through the night, the dog remained vigilant, watching over the young patient, ensuring she felt safe and protected.
The story of the loyal dog’s nightly vigil captured the hearts of millions when it was shared online. It resonated deeply with people from all walks of life, evoking a sense of empathy and appreciation for the incredible capacity of animals to bring comfort and solace, especially during challenging times.
The narrative of the loyal dog’s bond with the little girl in the hospital is a testament to the remarkable connections that can exist between humans and their four-legged companions. It underscores the empathy and understanding that animals can offer, often intuitively knowing when their human friends need their presence the most.
The story serves as a source of inspiration, reminding us of the therapeutic and uplifting qualities of the human-animal bond. It highlights the unique ability of dogs, in particular, to provide solace and companionship, transcending the boundaries of language and understanding.
In closing, the tale of the loyal dog who became a guardian to a little girl in the hospital is a powerful message of love and comfort. It reminds us that, even in the most challenging of circumstances, there is a source of solace and strength to be found in the presence of a loyal friend. The bond between this little girl and her furry guardian serves as an enduring reminder of the profound impact that animals can have on our lives, melting hearts and leaving an indelible mark of love and comfort.
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