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COMPARISON OF POPULATION OF VECTOR MOSQUITOES OF DIROFILARIA IMMITIS AND THEIR NATURAL INFECTION RATES IN SOUTHERN AND NORTHERN PARTS OF NAGASAKI CITY, JAPAN


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Title: COMPARISON OF POPULATION OF VECTOR MOSQUITOES OF DIROFILARIA IMMITIS AND THEIR NATURAL INFECTION RATES IN SOUTHERN AND NORTHERN PARTS OF NAGASAKI CITY, JAPAN
Other Titles: 長崎市の南部と北部における犬糸状虫伝搬蚊の個体数と自然感染率の比較
Authors: Oda, Tsutomu / Suenaga, Osamu / Zaitsu, Makoto / Kurokawa, Kenji / Fujita, Koichiro / Ogawa, Yasunori / Yamazaki, Ichiro / Iida, Kunihiro / Mine, Mariko
Authors (alternative): 小田, 力 / 末永, 瞼 / 在津, 誠 / 黒川, 憲次 / 藤田, 紘一郎 / 小川, 保徳 / 山崎, 一郎 / 飯田, 国洋 / 三根, 真理子
Issue Date: 15-Dec-1994
Publisher: 日本熱帯医学会 / Japanese Society of Tropical Medicine
Citation: 日本熱帯医学会雑誌, vol.22(4), pp.199-206; 1994
Abstract: Female mosquitoes including Culex pipiens pallens, the main vector of Dirofilaria immitis, and some secondary vectors, were collected at 4 to 10 sites in Nagasaki City from 1983 to 1989 using light traps, and the number of the mosquitoes and the natural infection rate with D.immitis were compared between the southern and the northern parts of the city. In 1983, Cx. p.pallens was extremely prevalent in the southern part but not in the northern part. After 1986, the prevalence of Cx. p.pallens became very low in both the parts. The rapid decrease of prevalence of this species may be attributable to the decrease in breeding sites by improvement of roads and open roadside ditches in parallel with spread of sewage systems. On the basis of the number of infected mosquitoes in Nagasaki City, it was suggested that, Cx. tritaeniorhynchus and Ae. albopictus are important vectors in addition to Cx.p.pallens, but Ae. togoi does not play a significant role in the transmission of D.immitis.
URI: http://hdl.handle.net/10069/22415
ISSN: 03042146
Rights: Japanese Society of Tropical Medicine
Type: Journal Article
Text Version: publisher
Appears in Collections:Articles in academic journal

Citable URI : http://hdl.handle.net/10069/22415

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