Dogs are able to detect Covid-19 in humans, a new study showed, paving the way for the broader use of sniffing canines in a global effort to contain the pandemic.
The dogs’ detection reached 97% sensitivity in the French study, meaning that’s how well the canines could identify positive samples. The sniffing was also 91% specific, which rates the dogs’ ability to identify negatives. The sensitivity rating beats that of many 15-minute antigen tests, which tend to be better at ruling out infection than at finding it.
The results mean that virus-sniffing dogs could be more widely deployed in airports, train stations or wherever crowds amass to screen people, much like they’re used for detecting drugs or bombs. Using dogs also means Covid could be identified at just a fraction of a second in a non-invasive manner, and at a low cost.
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