South Dakota reports first WNV case of the season

South Dakota's first West Nile virus (WNV) case of the 2010 season is a Brown County resident in the 20-29 age group, according to the Department of Health.

Peak transmission in South Dakota is from July through early September but WNV cases can also occur earlier. In 2009, the state reported its first case June 4. Since its first human WNV case in 2002, the state has reported more than 1,700 cases and 26 deaths.

To prevent mosquito bites and reduce the risk of WNV, the department recommends the following personal precautions:
• Use mosquito repellents (DEET, picaridin, oil of lemon eucalyptus, or IR3535) and limit exposure by wearing appropriate clothes.
• Limit time outdoors from dusk to midnight when Culex mosquitoes are most active.
• Eliminate standing water that gives mosquitoes a place to breed.
• Support local mosquito control efforts.
• Personal precautions are especially important for those at high risk for WNV – people over 50, pregnant women, transplant patients, individuals with diabetes or high blood pressure, and those with a history of alcohol abuse. People with a severe or unusual headache should see their physician.

Find WNV prevention information on the web at http://westnile.sd.gov. Information is also available from the SDSU Cooperative Extension Service at http://sdces.sdstate.edu/westnile/ and the South Dakota Animal Industry Board at http://aib.sd.gov/pamphlets.shtm.

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