Marburg hemorrhagic fever, also known as Marburg virus disease, is a rare but serious illness that can affect humans and non-human primates. Its characteristics are similar to those of Ebola virus disease. The Marburg and Ebola viruses belong to the same family of filoviruses and are among the most virulent pathogens known to affect humans. The fatality rate associated with them can reach 90%. The first known occurrence of the Marburg virus dates back to 1967. It is present in sub-Saharan Africa, where a few sporadic cases and two large-scale epidemics have been reported: one in the Democratic Republic of the Congo (DRC) in 1998–2000 and another in Angola in 2004–2005.