Researchers at Duke University in North Carolina have identified the first known case of coronavirus in a dog in the United States. Three human members of Winston’s family were known to have the virus and were participating in a study exploring treatments and vaccines. The research team discovered Winston had small amounts of the virus as they were collecting blood samples and nasal swabs weekly from members of his household to find out how the virus spreads. Like many humans infected with Covid-19, Winston’s symptoms were rather mild – coughing, and lack of appetite on one morning.