Georgetown sample tests positive for West Nile


A mosquito trap sample collected on the north side of downtown Georgetown has tested positive for West Nile Virus.

This testing is part of the City of Georgetown’s participation in the Williamson County and Cities Health District’s Integrated Mosquito Management program. The positive test was indicated in lab results received from the Texas Department of State Health Services

lab in Austin.

The sample was collected from a trap on the north end of the downtown area on Oct. 11. The species of mosquito that tested positive for West Nile Virus was Culex quinquefasciatus, also known as the Southern house mosquito. This species of mosquito has a flight range of about one mile.

Due to the number of children and adults who will be outside in the evening for Halloween activities over the weekend, the City of Georgetown is implementing insecticide spraying a pyrethrin-based insecticide in the vicinity of the positive sample. Pyrethrin is a chemical that can be found in chrysanthemums.

There are currently no reported human cases of West Nile Virus in Williamson County, and the County has not had any reported human cases since 2014. West Nile Virus should not be confused with other mosquito-borne viruses.

What you can do

• Drain standing water in flower pots, pet dishes, or clogged gutters so mosquitoes don’t have a place to breed and treat water that can’t be drained

• Defend by using an EPA-approved insect repellent

• Dress in long sleeves and pants when outdoors.

For more information, go to the WCCHD website at or visit the Texas Department of State Health Services West Nile website at