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St Louis Encephalitis
Human
2009
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St Louis Encephalitis:  Fairfax - Human
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Frederick County Loudoun County Clarke County Winchester City Fairfax County Warren County Fauquier County Prince William County Arlington County Falls Church City Fairfax City Rappahannock County Alexandria City Manassas Park City Manassas City Culpeper County Madison County Stafford County Orange County Orange County Spotsylvania County Fredericksburg City Navigate to District of Columbia page Navigate to Maryland page Navigate to Maryland page Navigate to Virginia page Navigate to West Virginia page
Map Scalebar 30 km
Cumulative 2009 Data as of 3 am, Nov 24, 2009*
These data are provisional and may be revised or adjusted in the future.
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* States and counties in yellow are those in which virus activity has been reported historically, but no positive test results have been reported or no surveillance has occurred this year.