Marburg virus disease is an infectious disease that can make people very ill, possibly leading to death. Like Ebola, the Marburg virus is a cause of viral haemorrhagic fever. People with the disease often have internal bleeding. The Marburg virus is rare and occurs in Africa. 

Ebola is a rare but serious infectious disease that occurs in Africa and is often accompanied by bleeding in the body. The official name is Ebola virus disease, formerly known as Ebola haemorrhagic fever. It is caused by a virus: the Ebola virus (in the group of filoviruses). Other filoviruses that can cause haemorrhagic fever include the Marburg virus and the Lassa virus.