2009 Arbovirus Surveillance Information

Welcome to the Massachusetts Department of Public Health Arbovirus Surveillance Information Website.  Here you can find out about mosquitoes and horses (equines) that have tested positive for WNV or EEE virus in your city or town.  You can also see if there have been reports of WNV or EEE human cases in your area. 

View the summary tables below, or click on one of the links to the left for more specific information.  Surveillance information is updated regularly. 

In 2009 in Massachusetts, routine collection and testing of mosquitoes for WNV and EEE virus will begin in June. The State Laboratory Institute performs testing for WNV and EEE virus infection in horse and human specimens year-round.

 NOTE: Dead birds are no longer being tested for WNV and do not need to be reported to MDPH.