So where are the hot spots? Airports
'It's a Game for Them.' Scientists Around the World Are Teaching Dogs to Sniff Out COVID-19
Now scientists are hoping that dogs’ keen sense of smell, 10,000 times better than that of humans, can help them identify people carrying COVID-19, too...Their goal: to train coronavirus-sniffing dogs, which could then be deployed at schools, airports and other public venues to reinforce existing nasal swab testing programs. A similar study is underway at the University of Pennsylvania...Other studies have produced promising, albeit early, results. In June, a team in France using a small number of samples collected from human patients who had been tested for COVID-19 in PCR tests (the current gold standard for testing) found a high degree of evidence that dogs could detect COVID-19 infections through differences in the smell of human subjects’ armpit sweat. (Also concluded: dogs don’t particularly mind sniffing people’s armpits.) In Germany, researchers ran a small pilot study, published in July, with trained coronavirus-sniffing dogs—corona-schnüffelnder hunde—and showed that the dogs were able to distinguish between coronavirus-positive samples and a control group with an average sensitivity (the rate of detecting true positives) of 83% and a specificity (true negative rate) of 96% after only one week of training. . ."
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