The dogs correctly identified 92% of positive samples and 91% of negative samples.
Using skin swab samples, researchers trained four dogs to detect COVID-19 infections caused by the original strain of the virus.Then they moved on to sniffing hundreds of airport passengers, where they correctly identified 98.7% of negative samples.
The dogs only missed three positive cases, but there weren’t enough positive samples among the airport passengers to get an accuracy percentage.
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