LM of the nematode, Strongyloides stercoralis

LM of the nematode, Strongyloides stercoralis

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Credit: CECIL H. FOX/SCIENCE PHOTO LIBRARY

Caption: Strongyloides worms. Light micrograph of a sample of human sputum containing the nematode worms Strongyloides stercoralis. Two worms are seen. The parasitic worms infest the human intestine and they produce larvae which pass out in the faeces. Infection is typically through the skin: larvae may enter the skin around the anus to begin a new infection cycle, or in the tropics may penetrate the skin of barefoot walkers. Larvae in the lungs may cause pneumonia or asthma, intestinal worms cause diarrhoea or there may be secondary disease. AIDS patients may develop strongyloidiasis, parti- cularly the pneumonic form of the disease. Magnification: x100 at 35mm size.

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Keywords: aids, animal, cause, invertebrate, invertebrates, light micrograph, nature, nematoda, nematode, roundworm, strongyloides, strongyloides stercoralis, strongyloidiasis, wildlife, zoology

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