COVID-19 can infect dogs and cats, spread among cats, studies findTwo of 15 dogs who shared homes with humans infected with COVID-19 in Hong Kong were also infected, according to a study published today in Nature, and a separate study details experimental infections of cats.In the first study, RNA from SARS-CoV-2, the virus that causes COVID-19, was detected in a 17-year-old male Pomeranian on five swabs collected over 13 days and twice in a 2-year-old male German shepherd; virus was isolated from nasal and oral swabs from that dog.Both dogs, who remained asymptomatic, had developed antibodies to the disease, and the genetic sequences of their viruses were identical to those of their infected owners. "The evidence suggests that these are