Marburg hemorrhagic fever is a deadly viral illness that is caused by the Marburg virus. The disease is believed to have originated from African green monkeys, and it is transmitted to humans through bodily fluids such as blood, sweat, and saliva. There is no specific treatment or vaccine for Marburg hemorrhagic fever, and it can be fatal in up to 88% of cases. Synonyms for this disease include Marburg virus disease, Marburg virus infection, and Marburg virus hemorrhagic fever. The disease was first discovered in the city of Marburg, Germany in 1967, when there was an outbreak among laboratory workers who had been handling monkeys from Uganda.