GARDEN GROVE, CA. – Mosquitoes harvested in Anaheim and Westminster have tested positive for St. Louis encephalitis ̵
Mosquitoes were collected along the old Bosa Chica Road in Westminster and near the Dale and Orange alleys in Anaheim on Thursday, according to Heather Highland of the Orange County Mosquito and Vector Control Vector.
The last time any SLE-positive mosquitoes were found in these areas was in 1987, according to the district. Mosquitoes testing positive for SLE were found in 2017 near OCMVCD offices in Garden Grove, according to the agency.
Most mosquito-bitten people infected with SLE do not become ill, but those who try will experience symptoms such as fever, ie. headache, nausea, vomiting and fatigue. Older adults can get brain inflammation, and in rare cases, a person may endure long-term damage or die.
The last time someone in Orange County was affected by SLE was in the fall of 1984. There were six positive SLE samples for mosquitoes from 1984 to 1987 in Orange County.
Vector Control officials encourage residents to focus on discharging any standing water around their homes to stimulate insect breeding grounds.