The Centers for Disease Control and Prevention said in a statement on Sunday that a "small number of Americans" are directly affected.

US health officials are supporting DRC and Uganda after a deadly Ebola outbreak triggered regional and global response efforts.

A number of Americans who are in the Congo are believed to have had exposure to suspected cases in the country’s latest Ebola outbreak, sources have told STAT.

The World Health Organization declared the outbreak a public health emergency of international concern on Saturday.

CDC says risk to Americans is low, but did not say whether any Americans were exposed in Africa