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.
Dog’s Unwavering Trust in Owner, Clinging to Him During Walk, Warms Hearts
Amidst the chaos and demands of everyday life, there are those small, precious moments that have the power to make us smile, often when we least expect it. These moments serve as reminders of our fondest memories, cherished friendships, or beloved pets. Recently, a heartwarming photograph captured one such moment, spreading joy and warmth across the internet.
The image depicts a young boy carrying his loyal dog to the market early in the morning. This simple act touched the hearts of many and prompted an outpouring of positivity, accumulating up to 17,000 likes and hundreds of heartfelt comments.
Bui Tu Anh, a viewer of the photograph, was transported back to his own childhood memories as he gazed at the image. He reminisced about his spacious garden, where he raised dogs, cats, rabbits, and chickens. The sheer joy of nurturing these animals and spending carefree moments with them was enough to create lasting, beautiful memories.
The photograph’s magic lies in the dog’s endearing gesture of wrapping its forelimbs around its owner, a gesture that melts the hearts of all who see it. Perhaps, the boy is too young to understand his pet’s fear of falling, but he knows the remedy lies in holding his furry friend close as they journey together on the bike.
The photographer behind this heartwarming image, Ngan Ha, shared her story. She had visited Don Market in Phu Binh, Thai Nguyen, and encountered this scene that touched her deeply. Being an animal lover herself, she couldn’t resist capturing this special moment. She added, “I have pet dogs at home, so whenever I see a dog, I connect with it. This boy reminds me of my own childhood.”
To Ngan Ha’s surprise, her hastily taken photos at the market resonated strongly with the online community, sparking conversations and nostalgia about youthful memories with family pets.
The charming image of the boy and his loyal companion on their market adventure reignited the fond memories of countless people who had grown up with beloved pets. They recalled the times when pets were like family members, accompanying them on village adventures, or patiently sitting in carts with three-wheel platforms.
Sharing their stories, readers fondly remembered their own pets and their unique quirks. From daring bicycle rides with dogs to cats eagerly awaiting their owners at the school gate, these tales of companionship and love filled the comments section.
One commenter, Suy Huynh, even humorously pledged to save money and raise Pitbulls to spend their lives together in blissful companionship.
Today, pets are more than just animals; they provide companionship, emotional support, and reduce feelings of loneliness and stress. They boost self-esteem and bring forth positive emotions, especially in children. While many consider their pets as family members, there are situations where the human-animal relationship becomes strained, leading to pet abandonment. Various reasons, such as lack of time, financial hardship, unexpected litters, family dynamics, or changes in the household, can result in this unfortunate outcome.
However, the experience of abandoned animals on the streets varies greatly. Some are fortunate enough to find new loving homes, while others face a harsher fate. The challenges and outcomes these animals encounter serve as a poignant reminder of the importance of responsible pet ownership and the need to support animal welfare initiatives.
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