A rare strain of the Ebola virus has infected an American doctor in the Democratic Republic of Congo as the outbreak continues to spread across the country and into neighboring Uganda.

ABUJA: The World Health Organization declared Sunday the Ebola disease outbreak in Congo and Uganda a public health emergency of international concern. Africa’s top public health…

More than 300 suspected cases and 88 deaths have been reported. The outbreak is caused by the rare Bundibugyo virus, which has no approved treatments or vaccines.

Seven Americans have been exposed in the large outbreak, the CDC says