Key facts Marburg virus disease (MVD) is a severe, often fatal illness in humans On average half of those who get the disease will die – although rates can be higher Early supportive care with rehydration and symptomatic treatment improves survival There are currently no approved vaccines or antiviral treatments for MVD, but a range of vaccines and drug therapies are under development Overview Marburg virus disease , formerly known as Marburg haemorrhagic fever, is a severe and often fatal illness in both humans and non-human primates. It is caused by the Marburg virus and Ravn virus, both of which are part of the Filoviridae family. It is closely linked to Ebola virus disease although it is a different virus. It is transmitted to humans from fruit bats and can spread from person to person. Signs and symptoms The incubation period for Marburg virus disease is typically between two to 21 days. The onset of the illness is abrupt and symptoms include.…