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Massachusetts Arbovirus Update

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

MDPH will resume testing for EEE and WNV in June 2022. Please check back in season to view your local risk levels and real-time detections.

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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

Download: Current EEE and WNV risk level by city/town (Excel)

Arbovirus results summary

  Mosquito samples positive Animals positive Humans positive
WNV 0 0 0
EEE 0 0 0

Additional Resources

Learn about EEE
Learn about WNV
Last updated: January 13, 2022
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