CONAKRY, Guinea (AP) — Health workers in protective hazmat suits treated patients in quarantine centers on Tuesday in a remote corner of Guinea where Ebola has killed at least 60 people in West Africa’s first outbreak of the deadly virus in two decades.

Seven patients are being hospitalized at one isolation ward in Gueckedou in southern Guinea, while two others are being treated elsewhere, said Doctors Without Borders. The aid group said it is sending mobile teams into the surrounding countryside in search of people who may have been exposed since the first cases emerged last week.