More than 130 people have died, all of them in China.
On Wednesday, British Airways halted all its flights to China, joining several Asian airlines that are cutting or suspending service to the region.
In the U.S., there have been five confirmed cases in four states, and emergency rooms are putting special protocols into place to identify, treat and contain further outbreak.
Here & Now's Peter O'Dowd talks to Dr. Jolion McGreevy, medical director of the emergency department at Mount Sinai Hospital in New York.
This segment aired on January 29, 2020.