It's really amazing what dogs are capable of. I've heard of dogs being able to sniff out health problems with their owners but now Covid sniffing dogs can help us all out. Metallica and Tool are just two bands that have use Covid sniffing canines to alert the band if anyone comes backstage including the crew, who has been infected. The company is called Bio Detection K9 and has worked with the US Department of Agriculture for many years. Now they're hanging out with rock stars! Lucky dogs. https://www.blabbermouth.net/news/metallica-and-tool-have-used-covid-sniffing-dogs-for-tour-safety-at-recent-shows/