Validating scent detection dogs sniffing COVID-19 samples at the airport

Sniffer dogs were educated to indicate samples from persons that had tested positive on COVID-19 PCR tests. they worked at the airport for 7 months and were validated there.

Sniffer dogs were educated to indicate samples from persons that had tested positive on COVID-19 PCR tests. The dogs and their handlers worked at the airport for 7 months and their ability to find the right persons were tested in a scientific test at the airport.