First Human Case Of West Nile Virus This Summer Reported In Long Beach

LONG BEACH, CA — Long Beach has confirmed California's first human case of West Nile virus this summer, officials said this weekend.

"The person was hospitalized with neuroinvasive illness and is currently recovering at home," city officials said Friday. "While there have been WNV positive mosquito detections in California, including in Long Beach, this is the first symptomatic case reported in California for the 2026 season."

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Health officials said the risk of West Nile virus and other mosquito- borne diseases increases during hot weather, typically from June to October. WNV spreads through the bite of an infected Culex mosquito.

Symptoms of may include fever, body aches, rash, nausea, vomiting and headaches. Most people infected have no symptoms; approximately one in 150 may develop more serious disease, such as brain inflammation, paralysis or death.

Those who are over 55 years old or have chronic health conditions are at higher risk for severe illness. People with these symptoms should seek immediate medical care.

There is no vaccine or treatment for West Nile virus.

Acting City Health Officer Dr. Cliff Okada urged residents to take the following precautions:

-- Dump and drain standing water around your home.

-- Prevent mosquito bites by applying insect repellent with EPA- registered active ingredients such as DEET, picaridin, IR3535 or lemon eucalyptus before going outside.

-- Wear long-sleeved shirts and long pants if spending time outside during dawn and dusk.

-- Install or repair door and window screens.

Additional information about mosquito prevention and West Nile virus is available at longbeach.gov/mosquitoes.

— City News Service