摘要
广东省宝安县樟树布采石场位于群山环绕的山坳。工棚孤立,工棚周围2—3km范围内没有居民点和家畜。常住外来民工20余人。在疟疾流行高峰季节6、7、8月,嗜人按蚊占捕获按蚊总数87.7％(1059/1207),叮人率分别为10.9、24.88、8.71只。子孢子阳性率0.54％(3/554),平均日存活率0.803,叮人习性0.476。民工带虫率45.5％(10/22),配子体阳性率13.6％(3/22)、1—2个月内疟史率50％(11/22),均为间日疟。用3种方法计算的昆虫学接种率平均分别为0.084、0.665、0.215;或者说在工棚平均居住1.5-11.9d,短者1.1d,长者21.3d,就可能感染疟疾。 根据对采石场工人感染疟疾的发病时间分析,以第一种方法计算的昆虫学接种率结果比较接近实际情况。定期监测昆虫学接种率的有关参数及其数量变化,可以预测疟疾流行趋势和发病水平。
Zhangs.hubu stone-pit in Baoan County is located in the mountain area.The workers' camps are 2-3 km away from the village.In a recent survey,in malaria peak season (June,July,August) An.anthropophagus accounted for 87.7% (1059/1207) of the total anopheline population and the average man-biting rate was 10.90,24.88 and 8.71 respectively.The sporozoite positive rate,the human blood index and the daily survival rate were 0.54% (3/554),1.0 and 0.803 respectively.The parasitaemia rate,the rate of gametocyte carriers,and the rate of p rsons with malaria history within 1-2 months were 45.5% (10/22),13.6% (3/22) and 50.0% (11/22),respectively.On average,the entomological inoculation rate A,B and C calculated by three methods were 0.084,0.665 and 0.215,respectively,indicating that the workers might get malaria infection if they stayed at the camp for 1.5-11.9 days.An analysis of the malaria onset time of the patients suggested that the time calculated from the inoculation rate A was closer to the real situation than those calculated from the inoculation rate B or C.The prevalence trend of malaria could be predicted through the monitoring of the entomological inoculation rate.
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124-127,共4页
Chinese Journal of Parasitology and Parasitic Diseases
关键词
疟疾
流行
广东省
采石场
Malaria outbreak,sporozoite positive rate,entomological inoculation rate,vectorial capacity
