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 lot of people had a crush on her in the 1980s, but look at her now…
After her breakout role in “Crocodile Dundee”, Linda Kozlowski found herself thrust into the international spotlight. Starring opposite Paul Hogan, the film marked a significant milestone in her career trajectory. However, following the “Dundee” series and a handful of other projects, Kozlowski gradually veered away from the glitz and glamor of Hollywood.
Hailing from Fairfield, Connecticut, Linda Kozlowski was born on January 7, 1958, with aspirations of treading the boards. She pursued her passion for acting by enrolling in the prestigious theater program at the Juilliard School. Upon graduating in 1981, she made her mark in various off-Broadway productions before transitioning to minor roles on Broadway and television. Notably, she starred alongside Dustin Hoffman in the television movie “Death of a Salesman”, marking a significant milestone in her career.
Linda’s path to fame wasn’t without its hurdles. Following her stint as a waitress post-“Death of a Salesman”, she relocated to California. It was there, under the wing of her mentor Dustin Hoffman and his wife, that Linda found refuge in their Malibu beach house. It was from this humble abode that Linda embarked on an audition that would alter the course of her life.
Dustin Hoffman’s endorsement landed Linda the coveted role of Sue Charlton in “Crocodile Dundee”, a character she portrayed with aplomb. The film’s astronomical success, raking in over $320 million against a $10 million budget, catapulted Linda Kozlowski into stardom virtually overnight. Interestingly, her fame initially soared in Australia due to the film’s early release there.
Despite her newfound celebrity status, Linda felt somewhat overlooked in Hollywood. While she reprised her role in the “Crocodile Dundee” sequels, she declined numerous offers for roles that pigeonholed her as the quintessential girlfriend of a comedic lead. Ultimately, Linda decided to bid adieu to acting after the third installment of “Dundee”.
In her personal life, Linda Kozlowski found love on set with her co-star Paul Hogan during the “Crocodile Dundee” series. They tied the knot in 1990 and welcomed their son, Chance, in 1998. However, their marriage dissolved in 2014. Following her divorce from Paul Hogan, Linda received a substantial settlement, empowering her to chart her own course. She turned her gaze towards Morocco, where she crossed paths with Moulay Hafid Baba, a native tour guide, sparking a profound life transformation.
Together, Linda and Moulay Hafid Baba founded the luxury travel agency Dream My Destiny in Marrakech. Crafting bespoke travel experiences tailored to their clients’ desires became their passion. Linda seamlessly transitioned from the glitz of Hollywood to the enchanting vistas of Morocco.
While Linda Kozlowski may have bid farewell to the silver screen, her legacy as Sue Charlton in “Crocodile Dundee” endures. At 63, she embraces her adventurous spirit and finds fulfillment in her new life in Morocco. She believes that reality surpasses fiction, channeling her intuition honed during her acting career into curating unforgettable experiences for travelers around the globe.
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