Experts said the sudden stoppage was a surprise and would set back work on investigating and trying to stop outbreaks and ...

The memo comes after Trump, in addition to dozens of other executive orders, pulled the U.S out of the WHO last week.

A U.S. Centers for Disease Control and Prevention official, John Nkengasong, sent a memo to senior leaders at the agency on Sunday night telling them that all staff who work with the WHO must ...