Healthcare Nipah virus claims 3 lives in Kerala, 8 under observation Updated : May 21, 2018 02:23 PM IST Nipah virus (NiV) infection is a newly emerging zoonosis that causes severe disease in both animals and humans. The natural host of the virus are fruit bats of the Pteropodidae family, Pteropus genus. Five more people have died due to high fever and similar symptoms of the virus here and in neighbouring Malappuram district. Subscribe to Moneycontrol PRO at just Rs.33/- per month for the first year. Use code SUPERPRO. Limited period offer. Available on Web and Android.