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.
From Emaciated to Energetic: The Miraculous Makeover of a Neglected Roadside Pooch
Meet Florcita, a brave young girl whose story is a testament to the kindness of humanity and the indomitable spirit of the innocent. Despite facing unimaginable adversity, she has emerged stronger and more resilient than ever before.
Let me tell you a tale of both despair and hope that highlights the devastating aftermath of neglect and the valiant fight to save one life. Florcita’s rescue occurred in surroundings that would make any animal lover weep. She was denied sustenance and water and discovered in a state of immense agony. The extent of her injuries became evident when medical examinations disclosed an alarming truth: her blood sugar and white blood cell counts were alarmingly low, while her liver enzymes had reached dangerously high levels.
The rescue team acted swiftly to save Florcita’s life as her critical condition worsened with each passing day. She was struggling to breathe, and dehydration caused the veins to rupture. She also had severe diarrhea infested with parasites that made her condition worse. Onlookers could only empathize with the caretakers as they watched Florcita suffer.
Despite everything, there was a glimmer of hope when Florcita managed to eat some hand-shredded chicken. However, she was too weak to even open her mouth. Her situation remained perilous as her kidneys began to fail, and her body temperature kept dropping. The caretakers prayed for a miracle to give Florcita strength and help her 7kg body survive.
Despite the tireless efforts made to save Florcita, the outcome was devastating. Her body could not fight any longer, leaving her supporters heartbroken. The news of her passing spread like wildfire, affecting all those who had followed her journey. She has become a symbol of vulnerability and loss, forever remembered by those who hoped for her triumph.
Florcita’s tragic end highlights the need for compassion, responsible pet ownership, and the protection of innocent lives. It reveals the harsh reality of neglect and abuse on the weakest members of our society. The collective grief felt by her supporters emphasizes the profound impact that such stories can have on our consciousness.
Florcita’s story is a call to action, urging us to rise above apathy and indifference. We must take measures to prevent further instances of suffering and extend love and kindness to every living creature. Awareness and education are vital in fostering a world where tales like Florcita’s are replaced with stories of resilience, healing, and hope.
As we say goodbye to Florcita, we hold onto the hope that her spirit will live on. Let her memory be a catalyst for change, inspiring people to have compassion and a strong commitment to protecting and valuing animal lives. May she find peace in eternity and always be remembered as a symbol of the fight for a world where all beings can thrive without harm or suffering. Fly high, Florcita, like time itself. Let her memory be renewed each spring, reminding us of our responsibility to nurture and safeguard all living creatures. Please show your support by liking and sharing this story with your loved ones. You are encouraged to share your thoughts and experiences in the comments below. Your involvement is vital in raising awareness and promoting change.
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