Gorillas at the San Diego Zoo made a full recovery from Covid-19 From CNN's Cheri Mossburg Western lowland gorilla, Winston, at San Diego Zoo Safari Park, on February 11. Tammy Spratt/San Diego Zoo Global Eight gorillas at the San Diego Zoo have made a full recovery after contracting Covid-19 last month, the zoo said. The western lowland gorillas caught the West Coast variant of the coronavirus, zoo officials say, despite team members adhering to all recommended biosecurity precautions. All eight gorillas at the zoo were secluded after the diagnosis, with some showing symptoms that included “mild coughing, congestion, nasal discharge and intermittent lethargy,” the zoo said in an online update.