Social history of viruses of encephalitis, of which 105 were fatal, were recorded. A new paramyxovirus was discovered in a victim's brain; it was named Nipah virus, after the village where he had lived. The infection was caused by a virus from fruit bats, after their colony had been disrupted by deforestation. The bats had moved to trees nearer the pig farm and the pigs caught the virus from their droppings. Several highly lethal viral pathogens are members of the "Filoviridae". Filoviruses are filament-like viruses that cause viral haemorrhagic fever, and include the Ebola and Marburg viruses. The Marburg virus attracted widespread press attention
Junin virus at Ft. Detrick, MD in the last 1980s which has shown to be safe, well tolerated and effective in reducing mortality and morbidity due to AHF. Junin virus The Junin virus or Junín virus is an arenavirus that causes Argentine hemorrhagic fever (AHF). The virus takes its name from the city of Junín, around which the first cases of infection were reported, in 1958. The Junin virus is a negative sense ssRNA enveloped virion with a variable diameter between 50 and 300 nm. The surface of the particle encompasses a layer of T-shaped glycoproteins, each extending up to 10 nm