West Nile Virus (WNV) and Eastern Equine Encephalitis (EEE or “Triple E”) are viruses that can cause illness ranging from a mild fever to more serious disease like encephalitis or meningitis. They are spread to people through the bite of an infected mosquito. There are no specific treatments for either virus, but steps can be taken to protect yourself from illness, including:
- Using insect repellents
- Wearing long-sleeved clothing
- Scheduling outdoor activities to avoid the hours around dawn and dusk
- Repairing damaged window screens
- Removing standing water from the areas around your home
Find basic information on mosquitoes in Massachusetts and the diseases they can carry.
Protect yourself from mosquitoes with these prevention methods.
Numbers of reported cases of mosquito-borne disease in Massachusetts residents over time.
Clinical and specimen submission information.
Learn more about Zika virus, Dengue fever, Chikungunya and other mosquito-borne diseases you can get when traveling abroad.
Downloadable educational tools to help raise awareness.
Links to external sites with more information.