FRESNO, Calif. (KFSN) -- Officials are warning all people to stay out of the San Luis Reservoir in Merced County until further notice due to blue-green algae blooming, posing potential health risks.
Boating is still allowed, but swimming and other recreational activities involving getting into the water are not considered safe.
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The department says exposure to toxic blue-green algae can cause several reactions, including eye irritation, skin rash and flu-like symptoms.
Pets can be especially susceptible because they tend to drink the water and lick their fur afterward.