研究表明,流行性乙型脑炎(乙脑)的发病率受多种因素影响〔1〕。为了解海南省乙脑的流行现状,揭示热带地区乙脑流行规律,为控制乙脑流行提供科学依据,从2003年开始建立了乙脑监测系统,进行乙脑疑似病例、宿主和媒介监测,以了解乙脑在自然界的流行动态,探讨媒介、宿主与人发病的 Studies have shown that the incidence of Japanese encephalitis (JE) is affected by many factors [1]. To understand the epidemic situation of JE in Hainan Province and to reveal the epidemic pattern of JE in the tropical region and to provide a scientific basis for controlling the JE epidemic, JE monitoring system was established since 2003 to carry out surveillance of suspected cases, hosts and media of JE, Learn about the epidemiology of JE in nature and discuss the pathogenesis of JE