Ticks & Mosquitoes Positive West Nile Virus (WNV) mosquito samples were identified in Barnstable, Berkshire, Bristol, Essex, Franklin, Hampden, Hampshire, Middlesex, Norfolk, Plymouth, Suffolk, and Worcester Counties. During the course of this year 7 human cases of WNV were detected in in Bristol, Essex, and Middlesex Counties, according to the MA Department of Public Health….
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