Mosquitoes Carrying Encephalitis Found In Orange County

ANAHEIM, CA —Mosquito samples in Orange County cities of Westminster and Anaheim tested positive for Saint Louis Encephalitis, the OC Vector Control District confirmed, Tuesday.

"(We) have not seen SLE positive mosquito samples in this area since 1987," a spokeswoman for OC Vector Control District said. As such, they will continue to seek out additional breeding areas to eradicate the insects.

In rare cases, long-term disability or death can result. There are no vaccines to prevent nor medications to treat SLE. There are no confirmed cases of human infection at this time in Orange County. Severe neuroinvasive disease (often involving encephalitis, an inflammation of the brain) occurs more commonly in older adults.

"This is the first detection in these areas in three decades. We are encouraging residents to take the necessary precautions to keep themselves and their families safe," said OCMVCD Public Information Officer, Heather Hyland. "The best way to protect yourself from mosquito bites is to discard any standing water around your home to eliminate potential breeding sources."

Saint Louis encephalitis (SLE) is a viral disease spread to people by the bite of an infected mosquito. Most people infected with SLE virus have no apparent illness. Initial symptoms of those who become ill include fever, headache, nausea, vomiting, and tiredness.

Residents should take the following precautions to help reduce the chances of getting bitten by mosquitoes:

• Dump and drain any containers filled with water at least once a week
• Clean and scrub bird baths and pet water bowls weekly
• Dump water from potted plant saucers
• Do not transport or share plant stems rooted in water
• Drill a hole or puncture containers to eliminate standing water

To prevent mosquito bites, the District offers the following tips:

• Wear repellent containing DEET®, Picaridin, IR3535, or oil of lemon eucalyptus
• Close all unscreened doors and windows to prevent mosquitoes from entering your home or space; repair broken or damaged screens
• Wear long-sleeved shirts and long pants, and opt for lighter-colored clothing

Visit www.ocvector.org to learn more about what you can do to prevent mosquito breeding in and around your property.