Johnson R N, Young D G, Butler J F
Department of Entomology and Nematology, University of Florida, Gainesville 32611.
J Med Entomol. 1993 Sep;30(5):918-21. doi: 10.1093/jmedent/30.5.918.
Seventy-two percent of 215 male green tree frog, Hyla cinerea (Schneider), captured in Alachua and Levy counties, FL, between April and mid-September 1978 and 1979 were infected with an undescribed Trypanosoma sp. None of the 31 female frogs captured concurrently was infected. Periodic sampling of the peripheral blood from the infected male frogs showed that the trypanosomes were present in high numbers only at night. Conspecific trypanosomes also were found in the mid and hind guts of female Corethrella wirthi Stone flies collected on or near male frogs in the field. Transmission of the parasite to uninfected frogs was demonstrated by exposure of male and female frogs to naturally infected flies and to parasites injected subdermally. This is the first report of parasite transmission by a species of Corethrella.
1978年4月至9月中旬以及1979年期间，在佛罗里达州阿拉楚阿县和利维县捕获的215只雄性灰树蛙（Hyla cinerea，施奈德）中，72%感染了一种未描述的锥虫属物种。同期捕获的31只雌蛙均未感染。对受感染雄蛙的外周血进行定期采样显示，锥虫仅在夜间大量存在。在野外从雄蛙身上或其附近采集的雌性维氏库蠓（Corethrella wirthi，斯通）的中肠和后肠中也发现了同种锥虫。通过将雄蛙和雌蛙暴露于自然感染的蠓以及皮下注射寄生虫，证明了该寄生虫可传播给未感染的青蛙。这是关于维氏库蠓属物种传播寄生虫的首次报告。
