An outbreak of Ebola hemorrhagic fever in west Africa has spread to Guinea's capital and beyond its borders in an "an unprecedented epidemic," a leading aid agency reported Monday.

A total of 122 patients are suspected of contracting Ebola and 78 have died, Doctors Without Borders said. Most victims have been in Guinea, but the World Health Organization reported Sunday that two deaths in Sierra Leone and one in Liberia are suspected to have been caused by the Ebola virus.

Climate change, as Sullivan points out, only makes events like this more likely.