关键词: 中华按蚊, 马来丝虫病, 流行动态

Abstract: A longitudinal study on prevalence trend of malayan filariasis and role of transmission filariasis by Anopheles sinensis have beed carried out in endemics with A.sinenses as only vector from 1982 to 1994 in Hubei province,China.Microfilarial rate (MFR),microfilarial density (MFD),vector parameters and IFA,ELISA,Dot-ELISA have been collected without any control measures in 4 villages. The results showed that MFR was down year by year and transmission was interrupted in three villages in which MFR in Shuiwa village be 0.97% in 1982,0.63% in 1983,0.55% in 1984,0.37% in 1985,0.05% in 1989,0 in 1990 and 0 in 1991;1.55%,0.84%,0.42% and 0.31% in 1986-1989 in 1989,0 in 1990 and 0 in 1991; 1.55%, 0.84%,0.42% and 0.31% in 1986-1989 respectively in Gobaimen village;0.72%,0.30%,0.08% and 0.08% in 1990-1994 in Huangyuan village respectively.However,MFR without different changes in Moshi village were 2.31%, 2.23%,2.30% and 2.43% in 1986-1989 respectively. An.sinensis harbouring infection larvae rate were 0.48% in 1982,0.10% in 1983 in Shuiwa;0.09% in 1987,0.19% in 1988 in Moshi.The serological positive rate was induced year by year as MFR's.It concluded that 1.5%-2.3%MFR is crisis level for transmission in malayan filariasis where A.sinensis as an only vector;the MFR dropped to bellow 1% after control, there was no indication the rate would upgrade during the survey period, no control measure be needed.A decline trend of the transmission of malayan filariasis,therefore,has been exhibited.