New Jersey’s Health Department has confirmed its first case of Eastern Equine Encephalitis in a human this summer. The illness has also been found in Delaware and Massachusetts.

Health officials warn that EEE can be deadlier than West Nile Virus.

The department says an elderly Somerset County man was hospitalized, but has since been discharged.

Eastern Equine Encephalitis has been detected in 22 mosquito samples and in three horses in the southern and eastern sections of New Jersey.