How does it spread

The virus appears to mainly spread from person to person.

"People are thought to be most contagious when they are most symptomatic (the sickest)," the CDC says. "Some spread might be possible before people show symptoms; there have been reports of this occurring with ... coronavirus, but this is not thought to be the main way the virus spreads."

How is it treated

People with coronavirus should receive supportive care to help relieve symptoms. In some severe cases, treatment includes care to support vital organ functions, the CDC says.

People who think they may have been exposed to the virus should contact their healthcare provider immediately.

How long is the incubation period

Quarantine is usually set up for the incubation period -- the span of time during which people have developed illness after exposure. For coronavirus, the period of quarantine is 14 days from the last date of exposure, because 14 days is the longest incubation period seen for similar illnesses.

How can you can prevent it

Meanwhile, you may be able to reduce your risk of infection by avoiding people who are sick. Cover your mouth and nose when you cough or sneeze, and disinfect the objects and surfaces you touch.

Avoid touching your eyes, nose and mouth. Wash your hands often with soap and water for at least 20 seconds.

Awareness is also key. If you are sick and have reason to believe it may be coronavirus, you should let a health care provider know and seek treatment early.