More than half the country's population is expected to face potentially life-threatening food insecurity this winter

The traveler, who recently returned from South Africa, was fully vaccinated and has "mild symptoms that are improving," said the CDC.

Although the United States and China have entered an era of strategic competition, cooperation on health security is more important than ever

In less than a week, the detection of the omicron variant of the coronavirus in southern Africa has upended the world

African health leaders see Omicron-related travel bans by high-income countries as punitive and "not informed by science"