Rare Mosquito-borne Virus: A person recently died of Eastern Equine Encephalitis Virus (EEE Virus or EEEV) infection in New Hampshire, the Department of Health and Human Services (DHHS) said. A resident of Hampstead, the patient, only identified as an adult by the DHHS, tested positive for the mosquito-borne viral infection and was hospitalised due to severe central nervous system disease, the department informed. WHAT IS EEE VIRUS?