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West Nile Virus
Sentinel
2005
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West Nile Virus:  Norfolk - Sentinel
Essex County Middlesex County Suffolk County Norfolk County Norfolk County Suffolk County Plymouth County Plymouth County Norfolk County
Map Scalebar 9.5 km
Cumulative 2005 Data as of 3 am, May 05, 2006*
These data are provisional and may be revised or adjusted in the future.
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Map Legend
* States shown in yellow are those in which virus activity has been reported historically, but all counties in these states have not necessarily reported virus activity.