It was an all-paws-in effort. A mom-of-two has her collie to thank for saving her life after she started sniffing her breast. Trisha Allison, 50, from Wilford, England, was lying on the couch one ...

Dogs used in a pilot program trained for a couple of months in a laboratory, sniffing donated socks that were worn by people who either had COVID-19 or didn't.

Dogs used in a pilot program trained for a couple of months in a laboratory, sniffing donated socks that were worn by people who either had COVID-19 or didn't.

Dogs used in a pilot program trained for a couple of months in a laboratory, sniffing donated socks that were worn by people who either had COVID-19 or didn't.

Dogs used in a pilot program trained for a couple of months in a laboratory, sniffing donated socks that were worn by people who either had COVID-19 or didn't.

Dogs used in a pilot program trained for a couple of months in a laboratory, sniffing donated socks that were worn by people who either had COVID-19 or didn't.

Dogs used in a pilot program trained for a couple of months in a laboratory, sniffing donated socks that were worn by people who either had COVID-19 or didn't.

Dogs used in a pilot program trained for a couple of months in a laboratory, sniffing donated socks that were worn by people who either had COVID-19 or didn't.