BIONOMICS OF ADULT ANOPHELES-PSEUDOPUNCTIPENNIS (DIPTERA, CULICIDAE) IN THE TAPACHULA FOOTHILLS AREA OF SOUTHERN MEXICO
BIONOMICS OF ADULT ANOPHELES-PSEUDOPUNCTIPENNIS (DIPTERA, CULICIDAE) IN THE TAPACHULA FOOTHILLS AREA OF SOUTHERN MEXICO
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DOI：
10.1093/jmedent/31.5.663
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发表时间：
1994-09-01
影响因子：
2.1
通讯作者：
WIRTZ, RA
中科院分区：
文献类型：
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作者：
FERNANDEZSALAS, I;RODRIGUEZ, MH;WIRTZ, RA
对假按蚊成虫的生物学特性进行了现场研究，以评估其作为墨西哥南部间日疟主要媒介的相对重要性。在墨西哥塔帕丘拉附近山麓地区的四个疟疾流行村庄，假圆盘姬蜂的种群密度在1990年和1991年的旱季期间有所增加。室内夜间寻找寄主活动呈单峰型，0100h为夜间高峰，多数居民者处于睡眠状态，充分暴露在按蚊环境中，因此具有较强的媒介意义。对诱捕方法的比较表明，马饵诱捕器比人类着陆器或紫外线诱捕器更有效。另一方面，坑舍比室内和自然庇护所的休息收集更有效。对野生捕获的拟间日疟原虫标本进行的酶联免疫吸附试验结果表明，存在间日疟原虫VK210和新的VK247环子孢子多态的自然感染。这些发现证实了间日疟原虫在高海拔地区作为间日疟主要媒介的重要性，并扩大了VK247间日疟原虫在墨西哥的地理范围。
Field studies on the bionomics of adult Anopheles pseudopunctipennis Theobald were conducted to assess its relative importance as a primary vector of vivax malaria in southern Mexico. In four malaria endemic villages in a foothill region near Tapachula, Mexico, population densities of A. pseudopunctipennis increased during the dry seasons of 1990 and 1991. The pattern of nocturnal host-seeking activity indoors was unimodal with a late night peak at 0100 hours enhancing its vectorial significance, because it occurred when most residents were asleep and fully exposed to the anophelines. Comparisons of trapping methods showed that a horse-baited trap was more effective than human landing catches or UV light traps. Pit shelters, on the other hand, were more effective than indoor and natural shelter resting collections. Results of enzyme-linked immunosorbent assays performed on wild-caught A. pseudopunctipennis specimens documented the presence of natural infections with the VK210 and new VK247 circumsporozoite polymorphs of P. vivax. These findings verify the importance of A. pseudopunctipennis as a major vector of vivax malaria at higher elevations and extend the geographical range of the VK247 P. vivax polymorph in Mexico.