COVID-sniffing canines have become an unexpected weapon in the battle against the deadly virus — and have already been deployed from Florida to New York to Massachusetts, the NY Post reports.

The specially trained canines are now scouring schools in Massachusetts to detect the virus, a precaution before students return to class.

“They love to work,” Bristol County Sheriff’s spokesman Jonathan Darling told CBS News. “And then when they’re not working, they just want to give you kisses and we love it.”

The COVID-detecting dogs love the work, according to Bristol County Sheriff’s spokesman Jonathan Darling.

The sheriff’s office sent two Labradors to Florida International University, which specializes in training dogs to find COVID in people and surfaces through its Global Forensic and Justice Center at its campus in Miami.

Researchers at the school had been working on identifying odors and scents dogs could be trained to detect since 1993 — and added COVID to the list in 2020, the school said.

The trained pups have even found their way to the Big Apple since the pandemic hit — although the NYPD has not trained their police dogs for the virus.

With super-sensitive snouts, the dogs, primarily Beagles, can be trained to detect the scent of the virus, just as they can smell explosives, drugs, and even bed bugs.

“I started back before we even had the first lockdown,” said BioScent owner Heather Junqueira, who has 22 pups trained to sniff out the bug. “It was a little tricky in the beginning getting samples,” she said Thursday. “But one thing led to another and we did it.”