Subtitles section Play video Print subtitles as New York City approaches the apex of infection. Some of its animal residents now dealing with Cove in 19 a four year old Malayan Tiger named Nadia at the Bronx Zoo, testing positive. We were surprised, of course, because this is the first time the person has naturally infected an animal and an animal has gotten sick. The zoo's chief veterinarian, Dr Paul Callie, explaining that the problem is worse than expected. The tiger infecting four other tigers and lions, the big cats displaying respiratory problems. She got sick, and the later other tigers and lions got sick. Thankfully, all expected to make a full recovery. When Nadia started showing symptoms, the veterinary team performed a number of diagnostic tests and blood work. It's not the same type of tests that healthcare providers give to people, so there's no competition for testing between these very different situations. But now naughty is positive test results, prompting the question. Can the virus be spread to humans from their pets? Doctor and hoeing house from New York City's Animal Medical Center says yes, but so far on Lee from cats. But we know that pet cat have almost the identical virus receptor on their cells that let the virus in that people. D'oh! So far, no evidence of transmission from dogs. But Dr Hogan House says to take the same precautions with animals as you would with human family members. If you're sick, isolate yourself from all members of the family, and that includes the pets back at the zoo, these big cats likely infected by asymptomatic zookeepers. We have keepers who cared for the cats. None of them have been tested, and they all were healthy at the time they worked with the cats. So aside from those tigers and lions, none of the zoo's other big cats including snow leopards, cheetahs, a clouded leopard and a puma are showing symptoms. Meanwhile, zookeepers around the country have been making extra efforts to protect the apes in their care because apes can easily catch respiratory illnesses that we humans might pass along. Well, I think I liked it better when we were talking about the Tiger King last week and is also just really underscores the fact that we I still have a lot to learn about this Corona virus. Thank you. Appreciate it. Thanks. Hi, everyone. George Stephanopoulos here. Thanks for checking on ABC News YouTube channel. If you'd like to get more video show highlights and watch live event coverage, click on the right over here to subscribe to our channel. And don't forget to download the ABC News after breaking news alerts. Thanks for watching.