Swimmer's itch is a common name for which condition?

Swimmer's itch refers to a skin condition caused by a type of parasitic infection associated with water exposure, specifically from cercariae, which are larvae of certain species of flatworms. These parasites can be found in freshwater environments, such as lakes and ponds. When these larvae come into contact with human skin, they can cause an allergic reaction, leading to symptoms like itching and a rash.

Thus, identifying swimmer's itch with schistosomiasis is accurate because schistosomiasis is a disease caused by parasitic flatworms, and the cercariae responsible for swimmer’s itch belong to these parasites. While swimmer's itch may produce dermatitis symptoms, it is a specific response related to the aquatic environment and the presence of the schistosomiasis parasite, making it distinct from other conditions listed in the options.

The other conditions, such as malaria, dermatitis, and psoriasis, do not directly relate to the condition known as swimmer's itch and involve different pathogens or underlying mechanisms. Malaria is a mosquito-borne infectious disease, while dermatitis encompasses various skin inflammation conditions that are not caused by parasitic infection in water. Psoriasis is a chronic skin condition that is autoimmune in nature and not related to aquatic exposure or parasites.