An airport in Finland is using dogs for a quick and inexpensive way to test passengers for COVID-19 with a smell test.
Passengers walk into "sniff stations" and wipe their skin, then put the wipe in a jar.
That wipe gets sniffed by a dog in a separate room.
If the dogs deem the smell positive, people are given a free swab test to confirm the results.
Researchers said the dogs are highly accurate.