The CDC recommends avoiding all nonessential travel to mainland China, Iran, South Korea, and Italy.
Older adults and those with chronic medical conditions should consider postponing nonessential travel to Japan.
For people at risk for the complications of COVID-19, such as those with underlying medical conditions or those who are older, it may be prudent to avoid any long-distance travel, says Dr. Goldberg.
Keep in mind, layovers at airports in these destinations also count.
If a layover is unavoidable, the CDC recommends that travelers not leave the airport.
Travelers with layovers may still be subject to screening and monitoring when entering the United States.