Samarawickrema W A, Sone F, Cummings R F
WHO Samoa Filariasis Research Project, Apia.
Trans R Soc Trop Med Hyg. 1987;81(1):124-8. doi: 10.1016/0035-9203(87)90303-8.
Seven years after the 2nd mass treatment of the population with diethylcarbamazine, transmission of subperiodic Wuchereria bancrofti was studied in four villages in Samoa during one year by means of biting catches of Aedes polynesiensis and A. samoanus. 2 villages were coastal, one inland bush and the other an inland coconut plantation community. Overall infection and infective rates from 6702 Ae. polynesiensis were 0.84 and 0.27% respectively, and the infection rate from 2858 Ae. samoanus, collected in 10-minute catches from 24 sites, was 0.65%. No infective Ae. samoanus was found in these samples. 12-hour all-day catches in the 2 coastal villages confirmed active transmission by Ae. polynesiensis. 12-hour all-night catches in the same 2 villages recorded high transmission by Ae. samoanus although there was little evidence of local breeding. The annual transmission potential for Ae. polynesiensis and Ae. samoanus was high in one of the coastal villages and low in the other. A total of 221 infected Ae. polynesiensis and 40 Ae. samoanus were recorded. Of the 72 infective Ae. polynesiensis, 59.1% contained 1 to 2 larvae each (median density 1.4); 70% of the 40 infected Ae. samoanus had 1 to 2 larvae (median density 1.1). From the proportion of infective Ae. polynesiensis the mean probability of survival was estimated as 0.917.
在人群第二次大规模使用乙胺嗪治疗七年后，通过对波利尼西亚伊蚊和萨摩亚伊蚊进行叮咬捕获，对萨摩亚四个村庄为期一年的亚周期班氏吴策线虫传播情况进行了研究。其中两个村庄位于沿海地区，一个在内陆丛林，另一个是内陆椰子种植园社区。从6702只波利尼西亚伊蚊中获得的总体感染率和感染性率分别为0.84%和0.27%，从24个地点10分钟捕获的2858只萨摩亚伊蚊的感染率为0.65%。在这些样本中未发现感染性萨摩亚伊蚊。在两个沿海村庄进行的12小时全天捕获证实了波利尼西亚伊蚊的活跃传播。在相同的两个村庄进行的12小时整夜捕获记录了萨摩亚伊蚊的高传播率，尽管几乎没有本地繁殖的证据。在其中一个沿海村庄，波利尼西亚伊蚊和萨摩亚伊蚊的年传播潜力较高，而在另一个沿海村庄则较低。总共记录到221只感染的波利尼西亚伊蚊和40只萨摩亚伊蚊。在72只感染性波利尼西亚伊蚊中，59.1%每只含有1至2条幼虫（中位数密度为1.4）；在40只感染的萨摩亚伊蚊中，70%有1至2条幼虫（中位数密度为1.1）。根据感染性波利尼西亚伊蚊的比例，估计生存的平均概率为0.917。
