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.
Saving lovable puppies: A courageous battle against numerous health-threatening parasites to secure a journey towards a joyous and wholesome existence-d6
In a world where the boundless charm of puppies meets the harsh reality of health-threatening parasites, a group of dedicated individuals has embarked on a courageous battle to ensure these lovable companions find their way to a joyous and wholesome existence.
The journey begins with the recognition of the vulnerability of these adorable creatures. Puppies, with their wide-eyed innocence and playful demeanor, often fall prey to a myriad of parasites that threaten their well-being. The guardians, driven by compassion and a deep sense of responsibility, have committed themselves to stand against this invisible menace.
Countless health-threatening parasites lurk in the shadows, ready to compromise the vitality of these innocent beings. From intestinal worms to external pests, the battle encompasses a wide spectrum of challenges. The guardians employ a multi-faceted approach, combining preventive measures, medical interventions, and educational outreach to tackle the issue at its roots.
Preventive measures form a crucial aspect of the guardians’ strategy. They tirelessly work to create awareness among pet owners about the significance of regular veterinary check-ups, vaccinations, and maintaining a clean environment. By empowering the community with knowledge, they aim to build a shield against potential health threats, ensuring that puppies start their lives on a foundation of wellness.
The courageous battle against health-threatening parasites extends beyond awareness. The guardians actively collaborate with veterinary experts, researchers, and pet care professionals to stay ahead of emerging challenges. Through continuous learning and adaptation, they refine their strategies, ensuring the most effective and compassionate care for the puppies under their protection.
Medical interventions play a pivotal role in the guardians’ quest. Each rescued puppy undergoes thorough veterinary assessments, enabling prompt diagnosis and tailored treatment plans. The guardians spare no effort in ensuring that these interventions not only eradicate existing parasites but also prevent future infestations, securing a healthier and happier life for their charges.
Educational outreach emerges as a beacon of hope in the guardians’ mission. They engage with communities, schools, and pet owners, fostering a culture of responsible pet care. By instilling a sense of shared responsibility, they aim to create a ripple effect that extends beyond the immediate rescue efforts, promoting a sustained commitment to the well-being of all puppies.
In the face of adversity, these guardians stand firm, unwavering in their commitment to saving lovable puppies from the clutches of health-threatening parasites. Their journey is not just a battle; it is a testament to the enduring power of compassion and the potential for positive change. Through their collective efforts, a pathway is being forged—a journey towards a joyous and wholesome existence for every puppy, where innocence is preserved, and well-being is paramount.
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