filoviiruste hulka kuuluv (niitjas) viirus, mis tekitas 1967 Euroopas palju raskeid hemorraagilisi palavikke (Marburgi haigus), the causative virus of Marburg disease, a severe febrile illness with a case mortality of over 20 per cent, a filovirus (species Lake Victoria marburgvirus of the genus Marburgvirus) that causes an often fatal hemorrhagic fever and was originally transmitted to humans from green monkeys