Within minutes to days after swimming in contaminated water, you may experience tingling, burning, or itching of the skin.
#2 pinpoint red dots on skin skin#
tingling, burning, or itching of the skin.What are the signs and symptoms of swimmer’s itch? Because these larvae cannot develop inside a human, they soon die. Although humans are not suitable hosts, the microscopic larvae burrow into the swimmer’s skin, and may cause an allergic reaction and rash. This larval form then swims about searching for a suitable host (bird, muskrat) to continue the lifecycle. Infected snails release a different type of microscopic larvae (or cercariae, hence the name cercarial dermatitis) into the water. If the larvae find one of these snails, they infect the snail, multiply and undergo further development. These larvae swim in the water in search of a certain species of aquatic snail. If the eggs land in or are washed into the water, the eggs hatch, releasing small, free-swimming microscopic larvae. The parasites produce eggs that are passed in the feces of infected birds or mammals. The adult parasite lives in the blood of infected animals such as ducks, geese, gulls, swans, and certain mammals such as muskrats and raccoons. How does water become infested with the parasite? Swimmer’s itch is found throughout the world and is more frequent during summer months. While the parasite’s preferred host is the specific bird or mammal, if the parasite comes into contact with a swimmer, it burrows into the skin causing an allergic reaction and rash. These parasites are released from infected snails into fresh and salt water (such as lakes, ponds, and oceans). Swimmer’s itch, also called cercarial dermatitis, appears as a skin rash caused by an allergic reaction to certain microscopic parasites that infect some birds and mammals.
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