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
African swine fever virus 2018, authorities announce the first outbreak of African swine fever in Bulgaria. In September 2018, an outbreak occurred in wild boars in Southern Belgium. Professional observers suspected importation of wild boars from Eastern European countries by game hunters being the origin of the virus. By the 4th of October, 32 wild boars had tested positive for the virus. For control of the outbreak, 4,000 domestic pigs were slaughtered preventively in the Gaume region, and the forest was declared off-limits for recreation. Since approximately 2007 to August 31, 2018, 1367 cases of ASF of either domestic or wild pigs were reported