As Ebola Spreads, Scientists Race to Find Vaccines and Treatments
The Bundibugyo virus, a little known type, previously had caused just two small outbreaks. Now itβs at the center of a rapidly widening epidemic in Africa.

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Β© Loren Elliott for The New York Times

Β© Sophie Park for The New York Times

Β© Apu Gomes/Agence France-Presse β Getty Images

Β© Agence France-Presse β Getty Images