Cercarial dermatitis life cycle. Diagram of the life cycle of the schistosome parasitic flatworms that are the cause of cercarial dermatitis, also kno

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Cercarial dermatitis life cycle. Diagram of the life cycle of the schistosome parasitic flatworms that are the cause of cercarial dermatitis, also known as swimmer's itch. The parasite is found in freshwater. If humans enter contaminated water the parasite penetrates their skin, causing an allergic reaction and rash.

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Photo credit: © CDC/SCIENCE PHOTO LIBRARY / Alamy / Afripics
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