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.
“Homeless but Not Alone: Dog’s Devotion to Owner Warms Hearts Amidst Difficult Circumstances”
In the bustling heart of the city, where the rhythm of life beats loudly and the struggles of the less fortunate are often drowned out by the urban cacophony, there exists an extraordinary bond between a homeless man and his faithful canine companion, a bond that has touched the hearts of millions.
Meet Jack, a man who fell through the cracks of society, finding himself without a home, without comfort, and without hope. His days were filled with uncertainty, and his nights were spent seeking refuge wherever he could find it. But amidst the harsh realities of life on the streets, there was one constant source of solace and unwavering love – his loyal dog, Buddy.
Buddy, a scrappy yet endearing mixed breed, became Jack’s lifeline in the sea of despair. Their story was not just one of a man and his pet; it was a testament to the transformative power of companionship and unconditional love. Despite the dire circumstances they faced, Buddy remained by Jack’s side, offering him warmth on cold nights and companionship in moments of solitude.
As the seasons changed and years passed, Jack and Buddy’s story began to spread. News of their unwavering bond traveled through the city, resonating with the hearts of compassionate individuals who were moved by their plight. Communities came together, offering support in various forms – warm meals, blankets, and, most importantly, a glimmer of hope. Their tale became a symbol of resilience, teaching people that love knows no bounds, transcending social status, and reminding us all of the simple, yet profound, joy that a loyal companion can bring.
One winter, as the city was blanketed in snow, a local shelter took notice of Jack and Buddy’s story. Touched by their unwavering companionship, they offered Jack a place to stay, a warm bed, and a fresh start. Jack was hesitant at first, reluctant to leave the only life he knew, but he realized that this opportunity could provide a better future not just for him but also for Buddy.
The transition from the streets to a shelter was not without its challenges. Jack, unused to the structured environment, struggled to adapt. Yet, through it all, Buddy remained his steadfast anchor, his furry confidant who provided comfort in the face of change. With the support of the shelter’s dedicated staff and volunteers, Jack began to rebuild his life. He attended counseling sessions, acquired new skills, and slowly regained his confidence.
Buddy, too, flourished in this new environment. He became a beloved presence within the shelter, bringing smiles to the faces of residents and staff alike. His wagging tail and playful antics served as a reminder of the transformative power of love, inspiring others to adopt pets and foster the same bond that he shared with Jack.
The tale of Jack and Buddy reached far beyond the confines of the shelter and the city. News outlets picked up their story, and soon, they became a symbol of hope for the homeless community worldwide. Donations poured in to support shelters and organizations dedicated to helping both people and their pets, reinforcing the idea that no one should ever be without a home, human or otherwise.
Their journey was not without its challenges, but it was a testament to the enduring power of love, friendship, and second chances. Jack and Buddy’s story became a beacon of hope, illuminating the darkest corners of society and reminding us all that compassion and empathy can transform lives.
As the years passed, Jack found stable employment and eventually secured a modest home. Buddy, now a senior dog, continued to be his faithful companion, reminding him daily of the resilience they shared and the unwavering bond that had stood the test of time. Together, they visited schools and shelters, sharing their story and inspiring others to never lose hope, no matter how dire their circumstances might seem.
In the end, the tale of Jack and Buddy became more than just a story; it became a legacy, a reminder etched into the hearts of millions, urging them to see the humanity in every individual, regardless of their situation. Their journey served as a powerful testament to the enduring strength of the human spirit and the extraordinary capacity of animals to bring comfort, joy, and love into our lives.
And so, in the quiet moments of reflection, as Jack looked into Buddy’s loyal eyes, he knew that their story was not just their own – it was a beacon of light that had shone brightly, guiding others out of the darkness and into the embrace of compassion, understanding, and love. Together, they had taught the world that even in the face of adversity, the bond between a man and his dog could ignite a spark of hope, illuminating the path toward a brighter, more compassionate future for all.
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