The Erie County Department of Health has confirmed that three mosquito samples collected on July 16 have tested positive for West Nile virus. One of the samples came from the City of Erie, while two were collected in Harborcreek Township.

These are the fourth, fifth, and sixth mosquito groups to test positive in the county so far in 2025. No human cases have been reported at this time.

Health officials say additional mosquito monitoring and potential control measures will be conducted in the affected areas, depending on the types and quantities of mosquitoes found.

West Nile virus is primarily spread through the bite of infected mosquitoes. In some cases, the virus can lead to West Nile encephalitis, a serious infection that causes brain inflammation. Older adults and individuals with weakened immune systems are at greater risk of severe illness.

The Erie County Department of Health is urging residents to take steps to eliminate standing water around their homes to help reduce mosquito populations. Recommended actions include:

   •Disposing of containers, cans, and especially used tires that collect water

   •Drilling holes in the bottom of recycling bins to prevent pooling

   •Cleaning roof gutters and checking storm drains and leaky outdoor fixtures

   •Emptying water from wheelbarrows, boats, toys, and plant pots, or storing them upside down

For more information, contact the Erie County Department of Health at (814) 451-7842.