WEB6 days ago · State raises threat of EEE to ‘high’ in Harvard and five nearby towns. by Joan Eliyesil. On Sept. 5, the Massachusetts Department of Public Health raised the risk level for Eastern equine encephalitis to “high” in Harvard and the Middlesex County towns of Ayer, Boxborough, Acton, Littleton, and Carlisle. Friday, September 13, 2024.