摘要
1982年以来,对以嗜人按蚊为主要媒介的马来丝虫病流行区防治后期的流行动态进行了观察。纵向观察8个村,其中3个村于1985、1987、1988年进行普查,微丝蚴率由1.0％下降至0.14％,嗜人按蚊幼丝虫阳性率由0.74％(1984年)降至0.09％(1990年);另5个村于1987、1988年分别普查6148和5496人,1990年复查原微丝蚴血症者368人,未发现微丝蚴阳性,1982—1991年解剖嗜人按蚊17693只和中华接蚊7914只,亦未发现幼丝虫感染蚊。横向监测17个县855个村,9年间(1982—1991)共血检213934人,检出微丝蚴血症56例,其中53例为1986年以前检出,1987、1988年分别检出1例和2例,1989—1991年未再检出微丝蚴血症者。认为通过较大区域的防治使微丝蚴率降至1％以下后,以嗜人按蚊为主的病区,微丝蚴率未见回升,马来丝虫病传播流行呈下降态势。
During 1982-1990,a longitudinal observation on prevalence trend of malayan filariasis has been made in endemic areas with An.anthropophagus as the main vector.A total of 22 795 person-times of blood examination were made,and 30 439 An.anthropophagus and 10 061 An.sinensis were dissected respectively.The microfilaraemia rate dropped from 1.0% to 0.14%,and the infection rate of An.anthropophagus decreased from 0.74% to 0.09% in 3 endemic villages,while no positive case or infected vector occurred in 5 villages where microfilaraemia cases were absent since the beginning of the study.In a cross-sectional survey,855 villages of 17 counties has been monitored for 10 years.Out of 213 934 person-times of blood examination,only 56 were positive,the average microfilaraemia rate being 0.0262%,and 94.64% of the positive had already been detected before 1986.Based on these data,it has been suggested that in endemic areas with An.anthropopha gus as main vector,when the microfilaraemia rate dropped to<1% after control,there was no indication that the rate would upgrade during the survey period.A decline trend of the transmission of malayan filariasis,therefore,has been exhibited.
出处
《中国寄生虫学与寄生虫病杂志》
CAS
CSCD
北大核心
1992年第2期100-103,共4页
Chinese Journal of Parasitology and Parasitic Diseases
关键词
按蚊
马来丝虫病
防治
流行态势
Are. anthropophagus,An. sinensis,malayan filariasis,late stage of control,epidemiological trend.
