The agency is restricting entry into the U.S. for non-U.S. passport holders who have visited areas where they may have been exposed to the virus.

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

The World Health Organization has declared the Ebola outbreak in Congo and Uganda a public health emergency of international concern, after officials identified more than 250 suspected cases and 80 suspected deaths linked to the disease.

A fatal health case in the US is drawing attention as officials work to separate it from an outbreak already under international watch.The Colorado Department of Public Health and Environment and the Douglas County Health Department announced Saturday,

Congo will open three treatment centers for the Ebola virus in the eastern Ituri province following an outbreak of a variant that has no approved therapeutics or vaccines, as the World Health Organization sent a team of experts and supplies to help combat the spread of the disease.