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 in the infectious disease known as Spondweni fever. Less is known about the clinical presentation of Spondweni virus infections, since a large problem with misdiagnosis is seen, as other viral infections like Zika. The majority of SPONV infections have been reported as asymptomatic. However, in certain Spondweni virus cases, signs and symptoms can appear as early as three days after infection. Six cases of Spondweni virus infections have been well documented, and the signs and symptoms parallel closely to Zika fever. Symptoms included fever, headache, nausea, myalgia, greyish mucoid lining on the posterior pharynx, arthralgia, vertigo, conjunctivitis, maculopapular and pruritic