Nipah virus, linked to Hendra virus, was first detected in Malaysia in 1998. It can cause symptoms ranging from no signs at all to deadly brain swelling (encephalitis). Malaysia has not reported any new cases since 1999, but there are still outbreaks happening in Bangladesh and India.In the Malaysia-Singapore outbreak, the virus spread mainly through contact with pigs. In Bangladesh and India, the spread is linked to eating contaminated date palm sap and human-to-human transmission. Bats are the primary carriers of this virus, which can infect both humans and animals. Actualmente no existen terapias efectivas, y el cuidado de apoyo y la prevención son las bases principales del manejo.