Indian media quoting the National Health Mission have reported 251 cases (including 38 deaths) of Japanese encephalitis in Assam in the first 3 weeks of July 2022. The disease has been reported in more than 20 of Assam’s 35 districts.
Japanese encephalitis virus (JEV) is a mosquito-borne virus which affects the central nervous system. It is most common around areas of rice and pig farming. JEV is transmitted from animals (mainly pigs/birds) to humans through the bite of an infected Culex mosquito which feeds in the hours around dusk. No human-to human transmission occurs.
All travellers to endemic countries or outbreak areas are potentially at risk of infection. This risk is greatest for those:
All travellers should be advised on:
Travellers at increased risk of developing severe clinical disease are those:
For most travellers the risk of acquiring infection will be very small, but consider vaccinating those:
For further information, see the Japanese Encephalitis page.