Invasive Aedes mosquitoes

Invasive Aedes mosquitoes have infested Southern California neighborhoods. (Photo courtesy Greater Los Angeles County Vector Control District)

West Nile virus activity continues to be detected in Los Angeles County mosquitoes, the Greater Los Angeles County Vector Control District reported Monday, Aug. 19.

The district says signs of West Nile Virus has been found in four additional mosquito samples from traps in Carson, Northridge, Reseda and SignalHill. Residents are urged to use EPA-registered repellents when spending time outdoors to prevent mosquito bites and West Nile Virus illness.

In July, Long Beach mosquitoes were the first batch in the county to test positive for the virus this year.

Not all repellents are effective against mosquitoes but the Centers for Disease Control and Prevention recommends repellents with the following active ingredients: DEET, Picaridin, IR3535 and Ool of lemon eucalyptus.

West Nile virus is endemic in Los Angeles County, and the summer heat can increase virus activity and mosquito populations, according to a district statement.

So far this year, 10 West Nile human cases have been reported in California, two of which were identified by the Los Angeles County Department of Public Health.

Visit for a comprehensive look at this year’s West Nile virus activity throughout Southern California.

West Nile is transmitted to people and animals through the bite of an infected mosquito. Symptoms from contracting the disease can include fever, headache, body aches, nausea or a skin rash, according to the department. The symptoms can last from several days to months.

—City News Service

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