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.
A compassionate dog mom, who delivered her puppies on the street, was rescued along with her precious pups just in the nick of time
She didn’t choose the life of the streets; someone had abandoned her earlier. However, when the realization of impending motherhood struck, there was no escaping the harsh reality of the streets. She had no time to find shelter; her babies were coming, and she summoned every ounce of strength to bring them into the world.
Heartbroken, exhausted, teetering on the brink…
This forsaken dog mother exhibited both fragility and incredible strength, a testament to the resilience that all mothers carry within them.
Will her story have a happy ending? Could this suffering lead to something better for once?
Kudos, Momma! The Puppies Have Arrived
The sight of a vulnerable, freshly birthed dog mother lying beside her newborns tore at my heartstrings. The image was a desperate plea for assistance.
This poor dog mother was utterly drained of strength.
How could she be strong when she had been broken in so many ways?
According to her collar, her previous owners had discarded her, likely because she was pregnant. Deprived of proper sustenance, water, or shelter, this gentle soul roamed the streets, searching for a safe place to give birth.
Yet, sometimes, plans simply remain as plans. Labor took her by surprise, forcing her to deliver right there on the street, on a humble piece of cardboard.
Six puppies entered this world that day, though tragically, two of them were angels from the start.
Despite her extreme exhaustion, as soon as she noticed people approaching, the mother summoned the last reserves of her strength and rose to her feet. She had to protect her precious offspring.
Unaware that these people were t here to help her, she went into full defensive mode, acting aggressively to shield her babies. It seemed as though she didn’t realize that there were good-hearted people in the world, and not everyone meant harm.
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The rescue team faced three fierce encounters with the mother before they finally succeeded in capturing her, along with her little ones, and relocating them to safety.
Back at the shelter, the rescuers were relieved to find that the mother had enough milk to nourish her puppies. Now, it was time to nourish the mother herself.
She was ravenous, beyond exhaustion, and yearning for a proper meal.
That day, the mother was fed three times, a stark contrast to the typical one or two daily meals for dogs. She devoured approximately 5 pounds of liver in her first two meals, a testament to her hunger.
After the critical first 48 hours, the puppies began to thrive, growing, opening their eyes, and experiencing the joys of puppyhood.
The mother, though still somewhat traumatized and apprehensive around humans, was making progress. Sooner or later, she would learn to trust people again.
Without the kindness of these compassionate individuals, dog lovers, and dedicated rescuers, the mother and her puppies would have faced starvation.
After all the trials in her young life, the mother was finally granted the life she had always deserved.
We may not be able to save all stray dogs or solve every problem, but at the very least, we can spare a few dollars to feed the dogs on our streets. If everyone were to pitch in, the number of stray dogs in need could be significantly reduced.
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