Massachusetts health officials confirmed a fourth human case of Eastern equine encephalitis (EEE) for this season. The latest case involves a man in his 50s who contracted the mosquito-borne virus in Middlesex County, an area identified as high-risk for EEE.
The Massachusetts Department of Public Health reported that 91 mosquito samples in the state have tested positive for EEE this season. The majority of these positive samples were found in Plymouth and Worcester counties, though EEE-positive mosquitoes have also been detected in Bristol, Essex, and Middlesex counties. Additionally, two horses have been diagnosed with EEE in the state this year.
The last significant EEE outbreak in Massachusetts occurred between 2019 and 2020, resulting in 17 human cases and seven deaths.
Public Health Commissioner Robbie Goldstein expressed concern over the current EEE season, noting its heightened activity. “While EEE remains rare, the risk is elevated in several communities. With warm, sunny weather expected for the rest of the week, we advise residents to take precautions in high-risk areas,” Goldstein said.
In addition to EEE, officials are urging residents to protect themselves against West Nile virus. There have been seven reported human cases of West Nile virus this season.
State health officials recommend the following measures to reduce the risk of mosquito-borne illnesses:
Eliminate Standing Water: Remove standing water from areas like birdbaths and flowerpots, where mosquitoes can lay eggs. Install screens on windows and doors to keep mosquitoes out.
Use Insect Repellent: Apply insect repellent, avoid outdoor activities during peak mosquito hours (dusk to dawn), and wear long pants and sleeves to minimize mosquito bites.
Protect Animals: Eliminate standing water around your property. Consult a veterinarian about mosquito repellents and vaccines for animals.
Residents are encouraged to check the state’s risk map for updates on mosquito-borne illnesses in Massachusetts.
