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NEW YORK - A tiger at the Bronx Zoo has tested positive for the new coronavirus, in what is believed to be the first known infection in an animal in the U.S. or a tiger anywhere, federal officials and the zoo said Sunday.
The 4-year-old Malayan tiger, and six other tigers and lions that have also fallen ill, are believed to have been infected by a zoo employee, the U.S. Department of Agriculture said. The first animal started showing symptoms March 27, and all are expected to recover, said the zoo, which has been closed to the public since March 16.
“We tested the cat out of an abundance of caution" and aim to "contribute to the world’s continuing understanding of this novel coronavirus,” said Dr. Paul Calle, the zoo's chief veterinarian.
The finding raises new questions about transmission of the virus in animals. The USDA says there are no known cases of the virus in U.S. pets or livestock.
“It’s important to assure pet owners and animal owners that at this time there isn’t any evidence that they can spread the virus,” said Dr. Jane Rooney, a veterinarian and a USDA official.
What you need to know about pets and coronavirus
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The coronavirus outbreaks around the world are driven by person-to-person transmission, experts say.
There have been reports of a small number of pets outside the United States becoming infected after close contact with contagious people, including a Hong Kong dog that tested positive for a low level of the pathogen in February and early March. Hong Kong agriculture authorities concluded that pet dogs and cats couldn’t pass the virus to human beings but could test positive if exposed by their owners.
Some researchers have been trying to understand the susceptibility of different animal species to the virus, and to determine how it spreads among animals, according to the Paris-based World Organization for Animal Health.
For most people, the coronavirus causes mild or moderate symptoms, such as fever and cough that clear up in two to three weeks. For some, especially older adults and people, it can cause more severe illness, including pneumonia, and can be fatal.
Map of known COVID-19 cases:
Questions and Answers from USDA:
Can people give this virus to animals and, if so, what animals are at risk?
This is the first case of its kind. We are still learning about this new coronavirus and how it spreads. This case suggests that a zoo employee spread the virus to the tiger. Further studies are needed to understand if and how different animals could be affected by COVID-19. State animal and public health officials will continue to work closely with USDA and CDC to monitor this situation and will conduct additional testing if it is warranted.
If multiple animals were showing symptoms, why was only one tested?
Only one tiger was tested as the collection of diagnostic samples in big cats requires general anesthesia. Since all tigers and lions were exhibiting similar respiratory symptoms, the attending veterinarian felt it was in the best interest of the animals to limit the potential risks of general anesthesia to one tiger for diagnostics.
If animals can catch the virus, can they give it back to people?
At this time, there is no evidence to suggest that any animals, including pets or livestock, can spread COVID-19 infection to people.
Will this finding prompt additional testing of animals?
No. This is an evolving situation, however, routine testing of zoo or personal animals is not recommended at this time. Public and animal health officials may decide to test certain animals that are showing signs of illness and that are known to have been exposed to the virus.
Should any animal showing signs of respiratory illness be tested?
USDA and CDC do not recommend routine testing of animals for this virus. Because the situation is ever-evolving, public and animal health officials may decide to test certain animals out of an abundance of caution. The decision to test will be made collaboratively between local, state or federal public and animal health officials.
Should I avoid contact with pets or other animals if I am sick from coronavirus (COVID-19)?
You should restrict contact with pets and other animals while you are sick with COVID-19, just like you would with other people. Although there have not been reports of pets becoming sick with COVID-19 in the United States, it is still recommended that people sick with COVID-19 limit contact with animals until more information is known about the virus. When possible, have another member of your household care for your animals while you are sick. If you are sick with COVID-19, avoid contact with your pet, including petting, snuggling, being kissed or licked, and sharing food. If you must care for your pet or be around animals while you are sick, wash your hands before and after you interact with pets.
What should I do if I think my animal has the virus?
Call your veterinary clinic with any questions about your animal’s health. In order to ensure the veterinary clinic is prepared for the household animal, the owner should call ahead and arrange the hospital or clinic visit. Make sure to tell your veterinarian if your animal was exposed a person sick with COVID-19, and if your animal is showing any signs of illness. Veterinarians who believe an animal should be tested will contact state animal health officials, who will work with public and animal health authorities to decide whether samples should be collected and tested.
Could this affect tigers or other animals at other zoos across the United States?
There is no evidence of this virus affecting animals at any other facilities in the United States. However, anyone sick with COVID-19 should restrict contact with animals, including pets, during their illness, just as they would with other people. Although there have not been reports of pets becoming sick with COVID-19 in the United States, it is still recommended that people sick with COVID-19 limit contact with animals until more information is known about the virus. If a sick person must care for a pet or be around animals, they should wash their hands before and after the interaction.
With the Associated Press