【摘要】 目的了解安徽省华支睾吸虫病的地域分布情况。方法根据《全国重要人体寄生虫病现状调查实施细则》要求,进行两特征(水系流域或地形与流行程度)分层整群随机抽样,改良加藤厚涂片法(1粪3检)检查人群。结果中签10个县27个点,共调查14 541人。全省平均感染率为0.722%(男0.729%,女0.715%),性别间差异无显著意义(χ2=0.0095,P>0.05)。感染者平均EPG149个,轻度感染占96.97%;淮河流域的感染率为1.085%,长江流域为0.173%,钱塘江流域为0.064%。地形分布以平原地带最高(1.394%),水网(0.199%)和丘陵(0.148%)地带次之,山区最低(0.095%)。片区分布以淮北平原感染率最高(1.39%),皖南山区最低(0.06%),江淮丘陵、大别山区和沿江平原在0.2%~0.36%之间。淮北平原与其它各片区间感染率的差异有显著意义(P<0.01)。结论全省以轻度感染为主,平均感染率和感染度均较第一次分布调查(1992)降低,淮河流域的平原地区仍是我省华支睾吸虫病的高发区。更多还原

【Abstract】 The current situation and the geographic distribution of clonorchiasis in Anhui province were investigated according to "Rules and Regulation for implementation of Nation-Wide Survey of current situation of major Parasitic Diseases in China",in which the stratified cluster random sampling was used based on two characteristic features with water system or landform and degree of prevalence,and the modified Kato-Katz thick smear technique was employed to examine ova of Clonochis sinensis.All together,14 541 persons in 27 points of 10 counties were examined,among which 105 persons were found to be infected with C.sinesis with an average infection rate of 0.722%(male:0.729%’,’female 0.715%).There were no significant difference in sex(χ2=0.0095,P>0.05).The average EPG was 149,among which the constituent ratio of light infection(EPG<1 000) was 96.97%.Meanwhile the infection rates in Huaihe,Yangtze and Qiangtang river valley were 1.085%,0.173% and 0.064% respectively,As to the landform distribution,the infection rates in proper sequence from high to low were plain strip(1.394%),water net region(0.199%),hilly land(0148%) and mountain area(0.095%) respectively.The highest infection rates in area distribution was in the Huibei plain(1.389%),followed by central hilly area(0.036%),south plain(0.199%) and west,mountain area(0.196%).The lowest infection rate was found in the southern mountain area(0.054%).There was significant difference between Huibei plain and other area(P<0 01).From these observations,it is evident that most cases of clonorchiasis in Anhui province are predominately of light infections.In comparison with the results of the last provincial survey performed in 1990,the infection rate and average EPG of C.sinesis seem to be reduced significantly,however,the Huaihe river valley is still the highest prevalent area of infection with C.sinesis in Anhui province.更多还原