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首页> 外文期刊>Journal of Medical Entomology >Natural Plasmodium infections in Anopheles darlingi and Anopheles benarrochi (Diptera : Culicidae) from eastern Peru
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Natural Plasmodium infections in Anopheles darlingi and Anopheles benarrochi (Diptera : Culicidae) from eastern Peru

机译：来自秘鲁东部的达氏按蚊和纳蚊按蚊（双翅目：Cu科）的天然疟原虫感染

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摘要

Malaria, both Plasmodium falciparum (Welch) and Plasmodium vivax (Grassi & Feletti), has reemerged as a significant public health disease issue in Peru, especially in forested areas in the eastern part of the country. The spread of Anopheles darlingi Root, the principal South American malaria vector, into new areas of Peru is thought to be a factor in this resurgence. However, epidemiological evidence suggests that in malaria endemic areas of eastern Peru where An. darlingi does not occur, other species are involved in malaria transmission. The objective of this study was to analyze Anopheles species collected from 11 provinces within four departments in eastern Peru during 2001 and 2002 for infections with P. falciparum and P. vivax. More than 84,000 Anopheles mosquitoes representing 13 species were tested by enzyme-linked immunosorbent assay for the presence of Plasmodium circumsporozoite (CS) proteins. Of these, only An. darlingi and Anopheles benarrochi Gabaldon, Cova Garcia & Lopez were found positive. In total, 14 (0.98%) of 1,432 pools of An. darlingi were positive for Plasmodium species; specifically 10 (0.70%) pools were positive for P, falciparum, two (0.14%) were positive for P. vivax VK210, and two (0.14%) were positive for P. vivax VK247 proteins. Nine (0.14%) of 6,323 pools of An. benarrochi were positive for Plasmodium; five (0.08%) of 6,323 pools were positive for P. falciparum, two (0.03%) were positive for P. vivax VK247, one (0.02%) was positive for mixed P. vivax VK210/VK247 infections, and one (0.02%) was positive for mixed P. falciparum and P. vivax VK210 CS-proteins. Although infection rates in An. benarrochi were significantly lower (0.14%) than rates found for An. darlingi (0.98%), our data suggest that An. benarrochi may play a role in transmitting and maintaining Plasmodium species in various malaria endemic areas of eastern Peru.
机译：疟疾，无论是恶性疟原虫（Welch）还是间日疟原虫（Grassi＆Feletti），在秘鲁，特别是在该国东部的森林地区，都已成为重大的公共卫生疾病。南美疟疾的主要传播媒介-达芬奇根系按蚊（Anopheles darlingi Root）向秘鲁新地区的传播被认为是造成这种情况回升的因素。但是，流行病学证据表明，在秘鲁东部的疟疾流行地区。达令吉不发生，其他物种也参与疟疾传播。这项研究的目的是分析2001年至2002年间从秘鲁东部四个部门的11个省收集的按蚊种，该种感染了恶性疟原虫和间日疟原虫。通过酶联免疫吸附测定法检测了代表13个物种的84,000多只按蚊，以了解疟原虫环子孢子（CS）蛋白的存在。其中，只有An。 darlingi和Anopheles benarrochi Gabaldon，Cova Garcia和Lopez被发现呈阳性。总共1,432个An池中有14个（0.98％）。达令吉的疟原虫属阳性。具体而言，P，恶性疟原虫阳性的有10个（0.70％）池，间日疟原虫VK210阳性的有两个（0.14％），而间日疟原虫VK247蛋白的阳性的两个（0.14％）。 6,323个暗池中有九个（0.14％） Benarrochi的疟原虫阳性; 6,323个池中有五个（0.08％）的恶性疟原虫呈阳性，两个间日疟原虫VK247呈阳性，一个（0.02％）对间日疟原虫VK210 / VK247混合感染呈阳性，而一个（0.02％） ）对于恶性疟原虫和间日疟原虫VK210 CS蛋白呈阳性。虽然感染率在安。 Benarrochi的比率（0.14％）明显低于An。达令吉（0.98％），我们的数据表明安。在秘鲁东部各种疟疾流行地区，Benarrochi可能在传播和维持疟原虫物种中发挥作用。

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