Eastern Equine Encephalitis (EEE) & West Nile Virus (WNV

Eastern Equine Encephalitis (EEE) and West Nile Virus (WNV)

West Nile Virus (WNV) and Eastern Equine Encephalitis (EEE or “Triple E”) are viruses that occur in Massachusetts and can cause illness ranging from a mild fever to more serious disease like encephalitis or meningitis.

• Mosquitoes in Massachusetts and Frequently asked questions
• Mosquito Control and Spraying in Massachusetts
  • For questions regarding aerial spraying, contact MDAR Crop & Pest Services at (508) 281-6786
  • To EXCLUDE your property from spraying, Click here for the exclusion form.

Resources:

• Massachusetts Eastern Equine Encephalitis (EEE) Risk Map and Reporting (June - October)
• Weekly Current EEE & WNV risk level & Data by City/Town
• Information (Fact Sheet) on EEE  
• Information (Fact Sheet) on West Nile Virus (WNV) 
• Mosquito-borne disease prevention