The US Centers for Disease Control and Prevention has expanded its travel notifications for China — broadening its highest level, “Level 3 - Warning,” to include all of Hubei province, not just the city of Wuhan.

The CDC also increased its travel advisory on Sunday for the rest of China from level 1 to level 2, alerting travelers to “practice enhanced precautions,” agency officials told reporters Monday.

The CDC also said it has screened roughly 2,400 travelers to the US for Wuhan coronavirus. On Friday, the agency said it had screened about 2,000 travelers, or about 200 flights.

Airport screenings: The CDC recently began health screenings for travelers from Wuhan at five airports: John F. Kennedy International Airport in New York, Los Angeles International Airport, San Francisco International Airport, Hartsfield-Jackson Atlanta International Airport and Chicago O'Hare International Airport.

Since January 21, there have been 110 people under investigation for Wuhan coronavirus in 26 states. Among them, five have tested positive, 32 negative and 73 are still pending as of Monday