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Understanding Covid 19

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Courtesy of Centers for disease control and prevention. 

Coronaviruses are a large family of viruses. Some coronaviruses cause cold-like illnesses in people, while others cause illness in certain types of animals, such as cattle, camels, and bats. Some coronaviruses, such as canine and feline coronaviruses, infect only animals and do not infect humans.

Risk of animals spreading the virus that causes COVID-19 to people
Some coronaviruses that infect animals can sometimes be spread to humans and then spread between people, but this is rare. This is what happened with the virus that caused the current outbreak of COVID-19. However, we do not know the exact source of this virus. Public health officials and partners are working hard to identify the source of COVID-19. The first infections were linked to a live animal market, but the virus is now spreading from person to person.

The virus that causes COVID-19 spreads mainly from person to person through respiratory droplets from coughing, sneezing, and talking. Recent studies show that people who are infected but do not have symptoms likely also play a role in the spread of COVID-19. At this time, there is no evidence that animals play a significant role in spreading the virus that causes COVID-19. Based on the limited information available to date, the risk of animals spreading COVID-19 to people is considered to be low.

Risk of people spreading the virus that causes COVID-19 to animals
image of a tiger laying on the ground with trees in the background
The first US case of an animal testing positive for COVID-19 was a tiger at a NY zoo.

We are still learning about this virus, but we know it is primarily spreading from person-to-person and it appears that it can spread from people to animals in some situations.

The first case external icon in the United States of an animal testing positive for the virus that causes COVID-19 was a tiger with a respiratory illness at a zoo in New York City. Samples from this tiger were collected and tested after several lions and tigers at the zoo showed signs of respiratory illness. Public health officials believe these large cats became sick after being exposed to a zoo employee who was infected with the virus that causes COVID-19. This investigation is ongoing.

CDC is working with human and animal health partners to monitor this situation and will continue to provide updates as information becomes available. Further studies are needed to understand if and how different animals could be affected by COVID-19.

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