West Springfield's Health Department confirmed mosquito samples from the city have tested positive for the virus.
Human cases of West Nile happen each year in New York City, and majority are identified between late July and October.
Confirmation of the first West Nile virus positive bird means the virus is circulating between birds and mosquitoes and there is heightened risk of infection in humans. Officials say they also found West Nile virus in a wild crow in northwestern New Castle County.
Elmore County is one of twelve Idaho counties to have tested positive for West Nile virus this season.
West Nile Virus has been confirmed in another western MA community.
State officials say two mosquito-borne viruses that carry potentially serious health risks for humans have been detected in so-called sentinel chickens in DE for the first time this year. The illness is not spread from person-to-person. The most serious cases of WestNile virus infection can lead to encephalitis, an inflammation of the brain, which can be fatal.
The Elmore County Pest Abatement District is treating these mosquito pools with fogging.
That is to cover up and wear insect repellent, reducing time outside between dusk and dawn when mosquitoes are most likely to bite and to do things like remove water from standing property.