Trained dogs sniff out COVID-19 as well as lab tests do
And the canines are even better than PCR tests at identifying infected people with no symptoms
![a dog wearing a harness that says "POLICE - K9, U.A.E, Ajman-K9" breathing into a metal cone](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2022/05/053122_ti_dog-covid_feat.jpg?fit=1030%2C580&ssl=1)
Dogs, including this one from the United Arab Emirates, have been trained to sniff out cases of COVID-19. The dogs are as reliable as PCR tests, a new study suggests.
Nosaïs Team (CC BY 4.0)