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West Nile Virus Case Total Reaches Three –
Study Shows Prevention Reduces West Nile Risk
(Santa Ana) – Orange County has now recorded three human cases of West Nile Virus (WNV) infection during 2005. While the new cases indicate continued WNV activity in Orange County, a recently released study shows that commonly recommended precautions are effective in reducing a person’s risk of WNV infection.
The latest cases recorded are:
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A 50-year-old Anaheim woman who began experiencing symptoms of WNV infection in mid-July. After being hospitalized for treatment, she is now recovering at home.
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A 69-year-old Brea man who began experiencing symptoms of WNV infection in late July. The man continues his recovery after being discharged from the hospital.
The effectiveness of personal precautions against WNV infection are detailed in a study to be included in the September 2005 edition of the journal Emerging Infectious Diseases, published by the Centers for Disease Control and Prevention. The study showed that practicing two or more of the recommended personal protective measures reduced an individuals’ risk of WNV infection by 50%. Among recommended personal precautions are:
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Using insect repellent containing DEET, Picaridin or Oil of Lemon Eucalyptus, always following label directions
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Limiting outdoor activity at dawn and dusk, when mosquitoes are most active
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Wearing long-sleeved shirts and long pants when outdoors
Orange County residents are also urged to empty all standing water on their property and make sure that window and door screens are in good condition.
The statewide total of WNV cases has risen to 118, with three deaths in California attributed to WNV infection. Most people who become infected with West Nile Virus do not experience symptoms or become seriously ill. Up to 20% of those infected with West Nile Virus will experience symptoms of West Nile fever, which may include fever, headache, body aches, nausea, tiredness, and sometimes swollen lymph glands or a skin rash. Anyone who develops more serious symptoms such as a high fever, severe headaches, neck stiffness, confusion, muscle weakness, or vision loss should seek medical care immediately. Adults over 50 years of age are at increased risk of serious complications from WNV infection.
Information on mosquito control is available on the Orange County Vector Control District’s website at www.ocvcd.org. Other websites with helpful information about West Nile Virus include:
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