Eastern equine encephalitis is caused by which pathogen?

A person in New Hampshire, USA, recently died after contracting the rare Eastern Equine Encephalitis virus. EEE is a rare but serious and often fatal infection caused by the EEE virus, leading to brain inflammation (encephalitis). EEEV can infect various animals, including mammals, birds, reptiles, and amphibians. The virus spreads to humans and horses through the bite of infected mosquitoes that feed on both birds and mammals. EEE cases are rare in humans but can cause severe illness. Symptoms can include headaches, high fever, chills, vomiting, disorientation, seizures, and coma, with a 30% fatality rate.