"The person developed symptoms over the weekend and tested positive late Sunday," Dr. Satish Pillai, the incident manager for the agency's Ebola response, told reporters on a media call.

A medical group says an American doctor tested positive after being exposed while treating patients.

While both have high fatality rates, the Ebola virus is being touted as more concerning as it is more contagious than hantavirus.

Officials with the Centers for Disease Control and Prevention say the risk to Americans remains low following high-risk exposures involving U.S. citizens in the Democratic Republic of the Congo.

The U.S. Centers for ​Disease Control and ‌Prevention confirmed on Monday that one American ​has tested positive ​for Ebola as part ⁠of their ​work in the Democratic ​Republic of Congo.

The hantavirus outbreak has resulted in three deaths so far

The U.S. Centers for Disease Control and Prevention's offices in the Democratic Republic of Congo and Uganda are responding to the Ebola outbreak.

May 17 (Reuters) - A number of Americans currently in the Democratic Republic of Congo are believed to have had exposure to suspected cases in the country’s latest Ebola outbreak, with several deemed to have had high-risk exposures,

The Centers for Disease Control and Prevention said Monday they did not detect hantavirus in a potential case in Winnebago County.