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.
See the Tragic Battle for Survival of an Abandoned Pregnant Dog: Against All Odds
Juanita, a sweet and innocent dog, found herself abandoned on the streets, struggling to breathe and unable to get up due to a distended belly filled with fluid. Passers-by ignored her plight until Karla Garcia, a kind-hearted individual, came to her rescue and took her to the vet.
The vet immediately recognized the severity of Juanita’s condition and took swift action. Multiple suctioning procedures were performed to remove the fluid from her abdomen, which was putting pressure on her lungs and making it difficult for her to breathe. Despite the challenges she faced, Juanita showed resilience and began to slowly recover with each procedure.
As Juanita grew stronger, her true personality emerged. She was playful, affectionate, and had a wagging tail that never stopped. The vet and her staff were captivated by Juanita’s spirit and made sure she received the best care possible. They even found her a foster home where she could continue her recovery in a warm and loving environment.
With each passing day, Juanita’s progress was evident. Day 14 saw her back to her old self, full of energy and life. Her remarkable journey touched the hearts of everyone who heard her story. She proved that with love and care, no obstacle is insurmountable.
Day 21 marked a significant milestone in Juanita’s journey. Her foster family decided to adopt her and give her a forever home filled with love and security. Juanita’s transformation from a helpless stray to a cherished family member was a testament to the power of compassion and resilience.
Juanita’s story serves as a reminder that there are countless abandoned and neglected animals in need of our help. It only takes one person to make a difference, and Karla Garcia’s act of kindness saved Juanita’s life and brought her the love and care she deserved.
Juanita’s journey from abandonment to a loving home is a beacon of hope for all animals in need. Her story is a testament to the power of compassion, and a reminder that every life is valuable and deserving of love and care. Let Juanita’s story inspire us all to be a voice for the voiceless and make a positive impact in the lives of animals in need. Together, we can create a brighter future for them all.
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