Coronavirus In The Other Room

Is your cat plotting your demise?  I can't answer that, but I can say that it's unlikely that the Covid-19 will be the weapon.  Covid-19 has shown up in domestic cats, dogs, mice, horses, even tigers.  The likely vector of these transmissions were infected humans.  It is also highly unlikely that any of these animals would pass the virus on to humans.  

Coronaviruses are notoriously indiscriminate infectors. The number of different coronaviruses that exist in the wild number in at least the hundreds, with most likely inhabiting the bodies of bats. On the whole, members of this large family of viruses seem very capable of frequent hops into new species, including humans, making recent detections of SARS-CoV-2 in non-human animals somewhat unsurprising, says Linda Saif, a virologist and animal coronavirus expert at Ohio State University...

The felines most at risk, Sykes says, are probably those in the company of sick owners, who may be exposing their pets to high quantities of viral particles. Even then, infection isn’t a guarantee. Another recent study, which has yet to be published in a peer-reviewed journal, found no evidence of the virus in a group of cats and dogs that had spent several weeks cooped up with several SARS-CoV-2-infected humans...

There’s also no evidence that infected cats can shuttle the virus into humans, Sykes says. And while the researchers behind the new Science study noted that cat-to-cat transmission was possible in confined laboratory spaces, these artificial settings are poor proxies for the natural world, she says. Just because an animal can harbor a virus in its body doesn’t mean it will be good at spreading the pathogen.