More Mosquito Samples in Centre Region Test Positive for West Nile Virus

Mosquito samples recently collected in three Centre Region municipalities have tested positive for West Nile Virus, the Department of Environmental Protection reported to Centre County's Planning and Community Development Office.

The samples were collected in State College Borough and College and Ferguson townships. Centre County's first West Nile Virus positives of the year were identified in mosquitos collected last month in Ferguson Township.

West Nile Virus is a mosquito-borne disease that produces severe neurological symptoms in about 1% of humans that become infected as the result of a bite by an infected mosquito. Most people do not develop any symptoms, but some may experience headaches, body aches, joint pains, vomiting, diarrhea or rash.

In 2023, Centre County had one confirmed human case of West Nile Virus, along with four positive mosquito samples and two confirmed cases in birds, according to DEP data.

Residents are advised to take pre-emptive measures by cleaning up, reducing yard clutter and dumping out any sources of stagnant water such as used tires, ornamental ponds, poorly functioning gutters, unused swimming pools, buckets, toys and tarps.

Most mosquitos in residential areas come from artificial containers left to collect stagnant water, which protect larvae from natural predators. Even during dry periods, such containers continue to hold water and a single bucket or tire can produce hundreds to thousands of mosquitoes in a year.

"Performing a community-wide cleanup will help reduce most mosquito concerns," according to a release from the county Planning and Community Development Office. "Residents are urged to contact their local municipal officials to help promote cleaning up to reduce mosquito concerns and disease risk. Stormwater management systems can sometimes contribute to mosquito issues and are routinely monitored by the Centre County Mosquito Disease Control Program staff."

From May through October, mosquitoes complete their life cycle within five to seven days. Residents should use repellents when spending time outside. As a last resort, they can purchase insecticides from garden centers and hardware stores to spray in their yard but need to be sure to follow the label instructions.

Centre County residents can report mosquito concerns through the Pennsylvania West Nile Virus website or by contacting the Centre County Mosquito Disease Control Program at 814-355-6791.

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