KNOXVILLE, Tenn. – Three tigers at a Tennessee zoo are in quarantine after one tested positive for the new coronavirus. Bashir, an 11-year-old male Malayan tiger, is positive for the virus that causes COVID-19, the Knoxville News Sentinel reported Friday. Two other tigers are presumed positive while their tests are being processed. All three animals have experienced coughing, lethargy and decreased appetite. They are presumed to have picked up the virus from an asymptomatic staff member. According to Zoo Knoxville, the risk that the tigers will spread the virus to humans is believed to be low. The animals have been enrolled in a research study on the virus’s transmission between humans and animals.