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
Spondweni virus fever, with symptoms ranging from headache and nausea to myalgia and arthralgia. However, SPONV is phylogenetically close to the ZIKV, it is commonly misdiagnosed as ZIKV along with other viral illnesses. The Spondweni virus belongs to the family "Flaviviridae" and the "Flavivirus" genus. Due to its phylogeny, it is related to the dengue virus, yellow fever virus, Japanese encephalitis virus, and West Nile virus. It is part of the Spondweni serogroup which also contains the Zika virus. However, in certain Spondweni virus cases, signs and symptoms can appear as early as three days after infection. Both of these viruses in