MALARIA TRANSMISSION BY ANOPHELES-SUBPICTUS (DIPTERA, CULICIDAE) IN A NEW IRRIGATION PROJECT IN SRI-LANKA
MALARIA TRANSMISSION BY ANOPHELES-SUBPICTUS (DIPTERA, CULICIDAE) IN A NEW IRRIGATION PROJECT IN SRI-LANKA
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DOI：
10.1093/jmedent/29.4.577
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发表时间：
1992-07-01
影响因子：
2.1
通讯作者：
RATHNAYAKE, AMS
中科院分区：
文献类型：
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作者：
AMERASINGHE, PH;AMERASINGHE, FP;RATHNAYAKE, AMS
1989-1990年，在斯里兰卡的一个新的灌溉方案中，采用解剖和ELISA方法对室内休眠的亚尖按蚊进行了疟疾感染调查，并采用ELISA分析血餐的方法对人的摄食率进行了调查。1989年4 - 6月室内休息丰度为22.3雌/房/15分钟渔获量，1989年11 - 12月为2.2雌/房/15分钟渔获量，1990年4 - 6月为7.5雌/房/15分钟渔获量。基于ELISA的疟疾感染率（间日疟原虫和恶性疟原虫合并）在1989年4月至6月为1.4%，11月至12月为3.2%，1990年4月至6月为12.5%。1990年，解剖和ELISA证实了恶性疟原虫卵囊和子孢子的存在。在三个采样期内，分别在4.3%、0.8%和5.2%的分析餐中检测到人血。估计的昆虫接种率（EIR）的范围从0.00006至0.005在不同的样品和媒介容量（VC）为0.0005的1990年样品。因此，安。在斯里兰卡，subpictus被认为是人类疟疾的传播媒介。
Indoor resting Anopheles subpictus in a new irrigation scheme in Sri Lanka were investigated during 1989-1990 for malaria infection by dissection and ELISA, and human feeding rates by ELISA analysis of blood meals. Indoor resting abundance was 22.3 females per house per 15-min catch in April-June 1989,2.2 in November-December 1989, and 7.5 in April-June 1990. ELISA-based malaria infection rates (Plasmodium vivax and P. falciparum combined) were 1.4% during April-June and 3.2% during November-December 1989, and 12.5% during April-June 1990. Dissection and ELISA confirmed the presence of oocysts and sporozoites of P.falciparum in 1990. Human blood was detected in 4.3, 0.8, and 5.2% of analyzed meals, respectively, during the three sampling periods. Estimates of the entomological inoculation rate (EIR) ranged from 0.00006 to 0.005 in different samples and vectorial capacity (VC) was 0.0005 for the 1990 sample. Thus, An. subpictus is incriminated as a vector of human malaria in Sri Lanka.