Overview

• State health officials reported two additional infections, a woman in her 60s exposed in Middlesex County and a man in his 50s exposed in Suffolk County.
• Risk was raised to high in Arlington, Chelsea, Medford, and Waltham, bringing the total number of high‑risk communities across Suffolk, Middlesex, Essex, and Worcester counties to 47.
• An additional 210 cities and towns across several counties remain at a moderate risk level, according to the Department of Public Health.
• Since June 17, laboratories have identified 445 mosquito samples positive for West Nile virus across counties including Barnstable, Berkshire, Bristol, Dukes, Essex, Franklin, Hampden, Middlesex, Norfolk, Plymouth, Suffolk, and Worcester.
• Eastern equine encephalitis has been found in 23 mosquito samples this season with no human or animal cases reported, as officials urge use of EPA‑registered repellents, avoiding dusk‑to‑dawn exposure, and wearing protective clothing.