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Massachusetts Arbovirus Update

Current Eastern Equine Encephalitis (EEE) and West Nile Virus (WNV) information in Massachusetts

The first EEE positive mosquito sample has been detected in Orange on 7/2/20. EEE risk levels for this are have been updated. Please check back throughout the season to view risk levels and findings of EEE and WNV.

Table of Contents

EEE risk map

If you are on a mobile device, you can Link to the Mobile View of the EEE Risk Map.

What does your city or town's EEE risk level mean? View the Key to Color Coding on EEE Risk Map | (Accessible version)

WNV risk map

If you are on a mobile device, you can Link to Mobile View of the WNV Risk Map.

What does your city or town's WNV risk level mean? View the Key to Color Coding on WNV Risk Map | (Accessible version)

EEE and WNV risk level by city/town

Arbovirus results summary

Additional Resources

Last updated: July 3, 2020
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