Onchocerciasis nematode roundworms

Référence de la vidéo 12082044
Onchocerciasis nematode roundworms. Light microscopy footage of a stage of the life cycle of the nematode roundworm Onchocerca volvulus that causes 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 this roundworm. 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. This clip is from a film published in 1967, with contributions by the National Institute of Health and Medical Research in Ghana.
Licence : Droits gérés
Crédit : Science Photo Library / NATIONAL INSTITUTES OF HEALTH
Model Release : Non requis
Durée : 18 Secondes
Aspect ratio : 4/3
Restrictions : -

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