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Coronaviruses are a large family of viruses, some causing illness in people and others circulating among animals, including camels, cats and bats.
The 2019 novel coronavirus (COVID-19) is a new virus that causes respiratory illness in people and can spread from person-to-person. This virus was first identified during an investigation into an outbreak in Wuhan, China.
The symptoms may appear in as few as two days or as long as 14 days after exposure. Reported illnesses have ranged from people with little to no symptoms to people being severely ill and dying.
Human coronaviruses spread just like the flu or a cold:
Prevention:
The CDC does not recommend wearing masks or respirators outside of workplaces settings (in the community). A respirator is a personal protective device that is worn on the face or head and covers at least the nose and mouth. Most often, spread of respiratory viruses from person-to-person happens among close contacts (within 6 feet). It is important that these devices are readily available to health care workers and others who need them.
Yes. The CDC recommends travelers avoid all nonessential travel to countries with a level 3 travel advisory at this time. For more travel information, visit our Travelers Page.
The CDC recommends avoiding all nonessential travel to a country with a level 3 travel advisory. For travel advice for other countries, please visit that country's Destination Page or Travel Health Notices page on the CDC's website.
The CDC does not have evidence to suggest that animals or animal products imported from China pose a risk for spreading COVID-19 in the United States. This is a rapidly evolving situation and information will be updated as it becomes available.
Updated 3/17/2020
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Coronavirus Disease 2019 (COVID-19) in the U.S.