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長崎市内における犬糸状虫の浸淫状況と伝搬蚊に関する研究 : 5.長崎市内における犬糸状虫の伝搬蚊


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タイトル: 長崎市内における犬糸状虫の浸淫状況と伝搬蚊に関する研究 : 5.長崎市内における犬糸状虫の伝搬蚊
その他のタイトル: Studies on the Filarial Prevalence among Dogs and the Mosquito Vectors in Nagasaki City, Western Japan : 5. On the vector mosquitoes of Dirofilaria immitis in Nagasaki City
著者: 末永, 斂 / 伊藤, 達也
著者(別表記) : Suenaga, Osamu / Itoh, Tatsuya
発行日: 1973年10月20日
出版者: 長崎大学熱帯医学研究所 / Institute of Tropical Medicine, Nagasaki University
引用: 熱帯医学 Tropical medicine 15(3). p131-140, 1973
抄録: To determine the vector mosquitoes of Dirofilaria immitis in Nagasaki City, field observations were carried out at three districts of the City, No. 1 was situated in urban environment, No. 2 suburban and No. 3 rural. The natural infection with developing and mature filarial larvae in mosquitoes which were collected by dog-baited-traps, human-baited-traps and light traps, were observed in 1968 and 1969. In the No. 1 district (urban), where microfilarial prevalence of house dogs was 35.7%, 9 mosquito species were trapped. Of these, Culex pipiens pollens was the most predominant, and Aedes albopictus was also numerous. Natural infections were found in 38 females (1.8%) of C. p. pallens and 5 (3.2%) of Ae. albopictus. In the No. 2 district (suburban) with microfilarial prevalence of 43.9%, 12 species of mosquitoes were trapped. Of these, C. p. pallens, Anopheles sinensis, Armigeres subalbatus and Ae. albopictus were considerably numerous. Natural infections were found in 4 (0.5%) of C. p. pallens and 2 (0.3%) of Culex tritaeniorhynchus summorosus. In the No. 3 district (rural) with microfilarial prevalence of 38.9%, 14 species were trapped. Among them, C. t. summorosus, Ar. subalbatus, Ae. albopictus and An. sinensis were rather numerous. Natural infections were in 16 (5.5%) of Ae. albopictus, 3 (0.5%) of C. t. summorosus, 2 (2.4%) of C. p. pallens and 2 (1.4%) of Aedes vexans nipponii. In view of the results of the present study, C. p. pallens would be the most important vector of the canine heartworm in Nagasaki City. Ae. albopictus may be the secondary important vector in the City. C. t. summorosus and Ae. vexans nipponii may also have some bearing on the transmission of the disease. Aedes togoi, which is highly susceptible to the parasite, seems to have no relation to the actual transmission of the disease, at least in Nagasaki City, because this mosquito is very scarce in the City.
URI: http://hdl.handle.net/10069/4142
ISSN: 03855643
資料タイプ: Departmental Bulletin Paper
出現コレクション:第15巻 第3号

引用URI : http://hdl.handle.net/10069/4142

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