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
Uganda Virus Research Institute by the Rockefeller Foundation. In 1947, scientists researching yellow fever placed a rhesus macaque in a cage in the Zika Forest. The monkey developed a fever, and researchers isolated from its serum a transmissible agent that was first described as Zika virus in 1952. Other noteworthy arboviruses discovered at the institute include Chikungunya virus, West Nile virus, Bwamba virus, Semliki Forest virus, O'nyong'nyong virus, and Kadam virus. In 1950, after gaining regional recognition, the Institute was renamed the East African Virus Research Institute, under which identity many of its noteworthy accomplishments were published. In 1977, it was reorganized under its