Viruses have now been found in mosquitoes or in animals around the state, prompting health officials to warn Maine residents to protect against mosquito bites. The Maine Center for Disease Control and Prevention reported positive tests for eastern equine encephalitis, or EEE, in several emu flocks and multiple horses. Also, a horse tested positive for West Nile Virus in York County.

The algae on North Pond began blooming about two weeks ago during a patch of hot weather, making the pond resemble a bowl of pea soup, according to Danielle Wain, lake science director for 7 Lakes Alliance, which works to preserve land and water in the Belgrade Lakes region.