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Public Health & Strategies

At this point, the only way to avoid ceracial dermatitis is to avoid contact with contaminated water. Shortening the time of exposure to the water and drying off after exposure may help reduce the risk of developing the rash. In the past several lakes in the United States applied copper sulfate, a moulluscide, to kill the intermediate snail hosts and thus interrupt transmission. However, this method is becoming less desirable since it is unknown what the long term consequences of using this chemical may be on the ecology of the lake. Another methods currently being tried is treating birds with anithelthminic medication, essentially trying to interrupt transmission via birds. However, these projects are difficult and costly to maintain, and the sheer volume of different types of schistosomes that can cause cercarial dermatitis make it difficult to control.