Second snow leopard at San Diego Zoo suspected positive for COVID-19 San Diego Zoo and last updated 2021-07-29 22:10:05-04 SAN DIEGO (KGTV) -- A second snow leopard has tested positive for coronavirus at the San Diego Zoo, just days after its male companion contracted the virus, zoo officials said Thursday. An in-house SARS-CoV2 PCR test showed a positive result for the zooâs 3-year-old female snow leopard called Naphisa. The zoo still is awaiting confirmatory results from the National Veterinary Services Laboratories, the San Diego Wildlife Alliance said. Ramil, a male snow leopard living at the San Diego Zoo, tested positive for COVID-19 last Friday.