In the early weeks of the US coronavirus outbreak, staff members in the U.S. Centers for Disease Control and Prevention had tracked a growing number of transmissions in Europe and elsewhere, and proposed a global advisory that would alert flyers to the dangers of air travel.
In the early weeks of the US coronavirus outbreak, staff members in the U.S. Centers for Disease Control and Prevention had tracked a growing number of transmissions in Europe and elsewhere, and proposed a global advisory that would alert flyers to the dangers of air travel.
