File:Onchocerca volvulus emerging from a black fly.jpg

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描述	English: Adult Black Fly (Simulium yahense) with (Onchocerca volvulus) emerging from the insect's antenna. The parasite is responsible for the disease known as River Blindness in Africa. Sample was chemically fixed and critical point dried, then observed using conventional scanning electron microscopy. Magnified 100X. (SEM) Plate #04999.
來源	From [1]
作者	United States Department of Agriculture

This image is in the public domain because it contains materials that originally came from the Agricultural Research Service, the research agency of the United States Department of Agriculture.

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	日期/時間	尺寸	用戶	備⁠註
目前	2016年3月2日 (三) 16:10	900 × 657（117 KB）	Sosisda33	Reverted to version as of 18:49, 10 August 2005 (UTC)
	2008年1月21日 (一) 09:10	900 × 657（117 KB）	Durova	{{Information \|Description=Adult Black Fly (Simulium yahense) with parasite (Onchocerca volvulus) emerging from the insect’s antenna. The parasite is responsible for the disease known as River Blindness in Africa. Sample was chemically fixed and critica
	2005年8月10日 (三) 18:49	900 × 657（117 KB）	Quadell	Adult Black Fly (Simulium yahense) with parasite (Onchocerca volvulus) emerging from the insect's antenna. The parasite is responsible for the disease known as River Blindness in Africa. Sample was chemically fixed and critical point dried, then observed