P. GunakasemC. ChantrasriP. SimasathienS. ChaiyanunS. JatanasenA. PariyanonthMahidol University2018-10-122018-10-121981-12-01Southeast Asian Journal of Tropical Medicine and Public Health. Vol.12, No.3 (1981), 333-337003836192-s2.0-0019767087https://repository.li.mahidol.ac.th/handle/20.500.14594/30198This surveillance study reveal the incidence of Japanese encephalitis cases throughout the year with an increase during the rainy season. JEV attacks all ages, but with a high incidence found in age group between 8 to 14 years determined from the studies in 1974, 1975 and 1976 and records of distribution in 40 provinces of Thailand. The severity of infection is high to warrant virus surveillance by the Ministry of Public Health.Mahidol UniversityMedicineArticleSCOPUS