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''Onchocerca lupi'' is a nematode that causes ocular onchocerciasis, an eye disease, in canine and feline. The parasite was first described in 1967 in a wolf from Georgia.〔Rodonaja, T. E. "A new species of Nematode, Onchocerca lupi n. sp., from Canis lupus cubanensis." ''Soobshchenyia Akad. Nauk'' Gruzinskoy SSR'' 45 (1967): 715-719.''〕 The other ''Onchocerca'' spp., ''O. volvulus'', is a human parasite that causes ocular onchocerciasis in human and affects 37 million people globally.〔Otranto, Domenico, et al. "Human ocular filariasis: further evidence on the zoonotic role of Onchocerca lupi." ''Parasit Vectors'' 5.1 (2012): 84.〕 The male ''O. lupi'' worms are smaller in size than the females. Males are 43–50 mm in length and 120-200 µm in diameter. Females are 275-420 µm in diameter but the total length are unknown while the longest fragments recorded were 160–165 mm. They both are fragile and slender.〔Egyed, Z., et al. "Morphologic and genetic characterization of Onchocerca lupi infecting dogs." ''Veterinary parasitology'' 102.4 (2001): 309-319.〕 Life cycle The complete life cycle of ''O. lupi'' is still unknown. The black fly, ''Simulium tribulatum'', is reported as a putative vector.〔Hassan, Hassan K., et al. "Isolation of Onchocerca lupi in Dogs and Black Flies, California, USA." ''Emerging infectious diseases'' 21.5 (2015): 789.〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Onchocerca lupi」の詳細全文を読む スポンサード リンク
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