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Dogs have been humans’ best friends for ages. They never fail to put smiles on faces while doing cute little things, whether begging for food or persuading you to take them for a walk, dogs are always there for their human. Dogs can’t just sniff their treat, but also COVID-19. According to new research, trained dogs can detect coronavirus 94% of the time. And it’s interesting that they can do this faster and more precisely. Also read – Coronavirus vaccination Day 29: Health, frontline workers who took the first injection 28 days ago to receive the second dose from today
Tommy Dickey of the University of California at Santa Barbara in the United States is also part of the research. He said: “The most striking result is that studies have already shown that dogs can identify people who are positive for Covid-19. Not only that, they can do it non-intrusively, faster and with comparable or perhaps better accuracy than our conventional detection tests. ” Also Read – As revenue losses increase, Delhi Metro requests center to allow trains to run at full capacity
“One dog twice reported positive results which could not be confirmed. Two weeks later, they discovered that the two people who gave these samples had to be hospitalized with Covid, ”Dickey added. Also Read – Tokyo 2021 Olympics: No hugs or handshakes, but 150,000 condoms will be handed out – Organizers issue strict guidelines for athletes during summer games
The magic lies in canine smell, which gives dogs the ability to detect molecules in tiny concentrations – “one part in a quadrillion versus one part in a billion for humans,” according to the article published in the Journal of Osteopathic Medicine.
Additionally, with 125-300 million scent cells and a third of their brains devoted to interpreting scents, dogs are well equipped with the ability to sniff volatile organic compounds that indicate the presence of Covid, the researchers said. .
Although the virus itself was odorless, the metabolic products excreted by Covid-positive individuals through their sweat glands were detected by the 18 dogs selected for the study with an accuracy rate of 83 to 100 % after only four days of training.
Meanwhile, a German research group employed eight odor detection dogs in a double-blind, randomized, controlled pilot study. The group trained the dogs for a week and then had them sniff 1012 samples of saliva or tracheobronchial secretions.
They returned an average detection rate of 94% with a sensitivity (ability to detect a true positive) of 67.9% to 95.2% and specificity (ability to detect a true negative) of 92.4% to 98 , 9%.
(With contributions from IANS)
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