The U.S. has long been the largest international donor to Congo's health sector, and the funding has helped train epidemiologists to do the fieldwork that identifies and controls disease outbreaks.

Over 1,000 people are sick from the mystery disease, health officials said. At least 60 people have died and over 1,000 more are sick from a deadly "unknown disease" spreading in a region of the ...

For example, there was a separate report of an "unknown disease" in December of last year in Congo that was later attributed to illnesses from malaria and respiratory illnesses. Over 50 deaths ...