Arbovirus Surveillance Plan and historical data

This data describes mosquito-borne illnesses in Massachusetts by county, city, and town. You can also download a risk management plan.

The Department of Public Health conducts surveillance for West Nile and Eastern Equine Encephalitis (also called arboviruses) that are spread by mosquitoes in Massachusetts. This surveillance consists of routine testing of mosquitoes and tracking cases in humans, and provides information about when and where people could be at risk.

To request additional data, please complete the surveillance data request form.

Table of Contents

Response Plan

Current data

Historical arbovirus data: Annual surveillance summaries

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