Tiger tested positive at Bronx Zoo, New York

According to the Department it is the first instance of a tiger being infected and can be a case of "human to cat" transmission. Although the tiger was the only one tested positive but other animals, several lions and tigers of the zoo, showed signs of respiratory illness. The US Authority believes the tiger got infected due to coming in contact with an infect zookeeper while he was asymptomatic.
Till now it was being assumed that animals are immune to coronavirus, but this is not the first case of animal infection. A dog in Hong Kong has also caught the virus through a 60 year old lady. According to the media, the dog is not severely infected and is being treated right now.

Steps taken by Central Zoo Authority in India

After the New York incident the Central Zoo Authority and Environment Ministry sent out a circular to all national parks, sanctuaries and tiger reserves asking the authorities to reduce human and wildlife interaction. It further placed restrictions on the movement of people inside the park to stop any possible spread of the deadly virus. The circular also read that the zoo-keepers must monitor mammals carefully, especially cats and ferrets. If an animal is suspected to have contracted the illness, its sample must e sent within a fortnight to the designated animal health institutes for coronavirus testing.
The Environment ministry has also instructed that if an animal is found sick, it should be quarantined immediately and the workers looking after the animal must avoid contact as much as possible while feeding. The circular has also asked the staff to follow the guidelines of  the Indian Council of Medical Research (ICMR).