For the first time in Rwanda’s history, its health ministry is dealing with an outbreak of Marburg virus disease, a rare but deadly hemorrhagic disease similar to Ebola – but unlike Ebola, there is no treatment or vaccines for Marburg,

Rwanda has reported nine deaths from its first-ever Marburg virus outbreak and confirmed 18 patients are in isolation, according to its health ministry.

A rare, highly contagious Ebola-like virus has claimed eight lives in Rwanda, and U.S. health officials are closely monitoring the outbreak. Marburg virus causes a rare hemorrhagic fever that has no authorized vaccine or treatment.