Eastern Equine Encephalitis Virus (EEE) Found in Manchester MosquitoesPublished:Sep 05 2025 10:54 AMCategory:Health NewsMANCHESTER, NH – The City of Manchester Health Department announced today that one batch of mosquitoes, collected in Manchester on August 27, 2025, has tested positive for Eastern Equine Encephalitis Virus (EEE). This is the first EEE positive mosquito batch identified in Manchester this year and the first since 2019. Additionally, there have been seven West Nile Virus (WNV) positive batches this season.