The Culex tarsalis mosquito is one of the most common in Los Angeles County.
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Topline:
The first human case of West Nile virus in California this year was detected in Long Beach, according to the city Friday.
Details: The person was hospitalized with neuroinvasive illness and is currently recovering at home, Long Beach said in a statement.
Symptoms: WNV is transmitted through the bite of an infected Culex mosquito. Most people infected have no symptoms.
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Less than 1% of infected patients develop neuroinvasive disease, which typically manifests as meningitis, encephalitis or acute flaccid myelitis, according to the Centers for Disease Control and Prevention.
People over 50 or who have chronic health conditions are at higher risk. Those with severe symptoms should seek immediate medical care.
There is no vaccine or treatment for WNV.
Why now: The risk of West Nile increases during hot weather, typically between June and October. While mosquitoes have tested positive for West Nile virus in California, this is the first symptomatic case in the state this year. Long Beach said it has not detected any WNV-positive mosquitoes in the city.
How to protect yourself:
The risk of WNV and other mosquito-borne diseases increases during hot weather. Health officials recommend taking these precautions:
- Prevent mosquito bites by applying insect repellent with EPA-registered active ingredients DEET, picaridin, IR3535 or lemon eucalyptus before going outside.
- Wear long-sleeved shirts and long pants if spending time outside during dawn and dusk. WNV-carrying mosquitoes are most active during those times.
- Install or repair door and window screens.
- Dump and drain standing water around home.
- Report dead birds online or call 877-WNV-BIRD (968-2473)
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