PORTSMOUTH, N.H. (AP) — New Hampshire health officials say that Eastern equine encephalitis has been detected in three mosquito batches, one in Portsmouth and two in Fremont.

WMUR-TV reports the New Hampshire Bureau of Infections Disease Control has raised the risk level in Fremont high, where a batch positive for Eastern equine encephalitis in September.

Batches for the virus also have tested positive for the disease in Pelham, Manchester, Candia, Sandown, Hampstead and Newton.

There have been no human cases of the virus. It was found in a horse in Northwood in August.