Massachusetts confirms first human case of eastern equine encephalitis (EEE) virus this year, prompting high alerts in multiple communities.
Towns are taking precautions by closing parks after dusk and restricting outdoor activities to reduce exposure risk.
EEE is rare but deadly, with a 30% fatality rate and potential for long-term neurological problems in survivors.
Climate change has extended the mosquito season in the Northeast, potentially increasing the risk of mosquito-borne diseases.
Health officials recommend using mosquito repellents, wearing protective clothing, and avoiding outdoor activities between dusk and dawn to prevent infection.