中国山东省三个地点的维德曼（Wiedemann）的宿主偏好和摄食模式。

Host preferences and feeding patterns of Wiedemann in three sites of Shandong province, China.

作者信息

Zhang Chongxing, Shi Guihong, Cheng Peng, Liu Lijuan, Gong Maoqing

机构信息

Department of Medical Entomology, Vector Biology Key Laboratory of Medicine and Health Shandong Province, Shandong Institute of Parasitic Diseases, Shandong Academy of Medical Sciences, Jining; Collaborative Innovation Center for the Origin and Control of Emerging Infectious Diseases, Taishan Medical University, Taian, Shandong, China.

出版信息

J Vector Borne Dis. 2017 Oct-Dec;54(4):328-333. doi: 10.4103/0972-9062.225837.

DOI:10.4103/0972-9062.225837

PMID:29460862

Abstract

BACKGROUND & OBJECTIVES: Anopheles sinensis Wiedemann is a major vector of malaria and is among the dominant species in Shandong province of China. Knowledge of the blood-feeding patterns of mosquitoes is crucial for elimination of malaria vectors. However, little information is available on the blood-feeding behaviour of An. sinensis mosquitoes in Shandong province. This study was carried out to compare the blood-feeding behaviour of An. sinensis in malaria-endemic areas of Shandong province China.

METHODS

Adult Anopheles mosquitoes were collected from three malaria-endemic areas (Jimo, Yinan and Shanxian), during the peak months of mosquito population (August and September) from 2014 to 2015. Indoor-resting mosquitoes and outdoor-resting blood-fed females were sampled in the morning hours (0600 to 0900 hrs) from 10 randomly selected houses using pyrethrum spray catch method, and sweeping with an insect net. ELISA was used for the identification of blood meal. The blood meal of each mosquito was tested against antisera specific to human, pig, dog, cow, goat, horse (mule) and fowl.

RESULTS

At all indoor study locations of Jimo, Yinan and Shanxian, 59.4, 68.1 and 98.8% blood-engorged female An. sinensis collected from cattle sheds fed almost exclusively on bovines, respectively. For outdoor locations, at Jimo site, 27.27 and 49.55% An. sinensis fed on cattle and pigs; at Yinan, 30.42% fed on cattle and 36.88% fed both on cattle and goats, while no pig antibodies were detected. At Shanxian, percent of An. sinensis that fed on cattle, pigs and cattle-goat was 20.72, 27.62 and 21.78%, respectively.

INTERPRETATION & CONCLUSION: The analysis of An. sinensis blood meals in all the three studied areas from human houses, cattle sheds, pig sheds and mixed dwellings revealed that An. sinensis prefers cattle hosts, and can feed on other available animal hosts if the cattle hosts are absent, and the mosquitoes readily feed on humans when domestic animals (cattle and pigs) are not nearby for feeding. The analysis of blood meal revealed that An. sinensis follow opportunistic feeding in Shandong province, China.

摘要

背景与目的

中华按蚊是疟疾的主要传播媒介，也是中国山东省的优势蚊种之一。了解蚊子的吸血模式对于消除疟疾传播媒介至关重要。然而，关于山东省中华按蚊的吸血行为的信息却很少。本研究旨在比较中国山东省疟疾流行区中华按蚊的吸血行为。

方法

在2014年至2015年蚊虫数量高峰期的8月和9月，从三个疟疾流行区（即墨、沂南和单县）采集成年按蚊。使用除虫菊酯喷雾捕捉法和昆虫网扫捕法，于上午（06:00至09:00）从10所随机选取的房屋中采集室内栖息的蚊子和室外栖息的已吸血雌蚊。采用酶联免疫吸附测定法（ELISA）鉴定血餐。对每只蚊子的血餐进行检测，以检测针对人、猪、狗、牛、山羊、马（骡）和家禽的抗血清。

结果

在即墨、沂南和单县的所有室内研究地点，从牛棚采集的饱血中华按蚊雌蚊中，分别有59.4%、68.1%和98.8%几乎只吸食牛血。对于室外地点，在即墨，27.27%和49.55%的中华按蚊吸食牛血和猪血；在沂南，30.42%吸食牛血，36.88%既吸食牛血也吸食山羊血，未检测到猪抗体。在单县，吸食牛血、猪血和牛 - 山羊血的中华按蚊比例分别为20.72%、27.62%和21.78%。