Credit: NATIONAL INSTITUTES OF HEALTH/SCIENCE PHOTO LIBRARY

Caption: Onchocerciasis nodule excision surgery. Close-up footage of the surgical excision and dissection of a nodule from a person with onchocerciasis (river blindness). This is a type of filariasis, caused by the tiny worms (microfiliariae) that are the larval stage in the life cycle of the nematode roundworm Onchocerca volvulus. The larvae are spread by flies which breed in and around rivers, primarily in Africa. The adult worms (macrofiliariae) grow in the body and mate to produce the microfiliarae that cause an allergic reaction, causing blindness if near the eye. The final part of the clip shows the roundworms in the dissected excised tissue. This clip is from a film published in 1967, with contributions by the National Institute of Health and Medical Research in Ghana.

Release details: Model release not required. Property release not required.

Keywords: 1900s, 1960s, 1967, 20th century, abnormal, africa, african, clip, close-up, condition, detail, disease, disorder, epidemiology, excising, excision, filariasis, film, footage, ghana, ghanian, historical, history, human, life cycle, macrofiliariae, medicine, microfiliariae, motion, mute, national institute of health and medical research, nematode roundworm, nematode worm, onchocerca volvulus, onchocerciasis, operating theatre, operation, parasite, parasitology, people, person, river blindness, scalpel, surgeons, surgery, surgical, treating, unhealthy, video

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Onchocerciasis nodule excision surgery

K005/6488 Rights Managed

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Duration: 00:00:42.01

Frame size: 640x480

Frame rate: 29.97

Audio: No

Format: QuickTime, Photo JPEG 100%, progressive scan, square pixels

File size: 214.7M

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Capture format: Unknown

Codec: MPEG-4 Video

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