The Iowa Department of Natural Resources says swimmer’s itch has been reported in another Iowa lake.
Campers at East Okoboji Lake in northwest Iowa reported contracting the skin rash after swimming in the lake. It is caused by a parasite transferred by bird droppings.
The DNR says the parasite eggs hatch in the water and cause an allergic reaction on the skin that shows up as welts and causes itching.
The itch can last up to a week but is not life threatening. It can be treated with over-the-counter anti-itch medicines.
Cases have also been reported at Crystal Lake in Hancock County.