PELHAM — Eastern Equine Encephalitis has been found in a mosquito test batch in Pelham, and the town has plans to spray parks, fields and schools.
No people in New Hampshire have gotten the virus this year, but the state Department of Health and Human Services said it is possible.
A man in southeastern Massachusetts has been infected with the virus, the Massachusetts Department of Public Health announced Saturday.
New Hampshire State Epidemiologist Dr. Benjamin Chan warned residents to be on their guard for mosquitoes. He advised staying inside at dawn and dusk, when mosquitoes are most active, and advised wearing long sleeves, long pants and bug spray, and removing standing water from around the home.
EEE is one of three mosquito-transmitted diseases present in New Hampshire, according to DHHS; in addition to EEE, mosquitoes in the state also carry West Nile Virus and Jamestown Canyon virus.
Since 2004, there have been 15 human infections of EEE identified in New Hampshire; the last case of the virus was in 2014.
Symptoms appear four to 10 days after a mosquito bite. The virus presents itself as a flu-like illness, with fever, headache, weakness, and muscle and joint pains.
A more serious central nervous system infection can develop such as meningitis or encephalitis, which is inflammation of the brain.
EEE typically causes a more serious disease than West Nile Virus, according to DHHS, and carries a high mortality rate for those who contract the serious encephalitic form of the illness. There is no specific treatment for the disease.