Figure 11

Zoonotic Onchocerca from human ocular connective tissue. Zoonotic Onchocerca sp. from a nodular granuloma of the eye in a patient from Ohio, USA. a) Transverse section of female worm shown in Fig. 5a encased in a nodular granuloma. Low cuticular ridges and inner striae, 2 per ridge, are evident Hematoxylin and eosin stain. Scale bar = 50 μm. (Original; courtesy of Drs. Yassin and Hariri, University of Pittsburg Medical Center). b) Short piece of female Onchocerca sp. removed from granuloma tissue before fixation, showing characteristic, diagnostic structures of the cuticle with circular ridges and inner cuticular striae. Scale bar = 150 μm. (Original; courtesy of Drs. Yassin and Hariri, University of Pittsburg Medical Center).