Pennsylvania county reports positive West Nile virus samples, urges caution for local residents

The Cumberland County Vector Control Office received confirmation from the Pennsylvania Department of Environmental Protection (DEP) on Thursday of positive samples for the West Nile virus (WNV) collected in Cumberland County.

Nine samples tested positive for the virus. Counties with positive tests include Camp Hill Borough, Monroe Township, South Middleton Township, Southampton Township, Upper Allen Township, Shiremanstown Borough and Lemoyne Borough.

While the virus cannot be spread from person-to-person contact, it can be transmitted from mosquitoes and birds. One in five people infected with the virus can develop a mild infection called West Nile fever (WNF). Symptoms of WNF includes aches, fever, skin rashes and swollen lymph nodes. Less than one percent of people infected with WNV develop a life-threatening illness called West Nile encephalitis, with symptoms such as muscle weakness, high fever, disorientation, tremors and convulsions.

Successful mosquito control is a key component in limiting the spread of WNV. Vector Control is encouraging all residents to help limit local mosquito populations by dumping any standing water around their property. Water bodies that are unable to be drained can be treated with mosquito dunks that contain Bacillus thuringiensis israelensis, which kill mosquito larvae. The products are safe for use around humans and pets and can be found at many local hardware stores.