The Oregon Health Authority has issued a recreational use advisory for Lost Creek Lake in Jackson County due to the presence of cyanobacteria blooms.
The harmful algae blooms are naturally occurring, with some of the bacteria producing toxins that can cause serious illness in humans as well as illness or death in animals, which are more sensitive.
OHA officials said warm weather and nutrients in the water can cause bacteria to multiply rapidly, forming a "bloom."
Officials said people should avoid swimming and high-speed water activities -- such as water skiing or power boating -- in areas of the reservoir where blooms are present because the major route of exposure is ingestion of water. Toxins are not absorbed through skin, but those with skin sensitivities may get a puffy red rash.
Children and pets are at increased risk for exposure due to their size and level of activity. People should alert health care providers if they or a family member are ill due to possible exposure to cyanotoxins. Pet owners should alert their veterinarians to suspected exposure if they seek care.
OHA encourages people to visit Lost Creek Lake and enjoy activities such as camping, hiking, biking, picnicking, bird watching, canoeing and kayaking. Fish caught from areas where cyanobacteria blooms are present may pose unknown health risks, so OHA recommends not eating fish from those areas.
