A mosquito sample taken in the city of Keller has tested positive for West Nile virus, the city announced Aug. 15.

The sample was taken from a trap in the 7000 block of Shady Grove Road and is the first sample to test positive in Keller this year, according to the announcement.

The city said it will begin ground spraying near the sample site between 9 p.m. and 5 a.m. Aug. 15 and 16. Spraying will target roads and public land within a half-mile of the site. Gated communities can leave their gates open both evenings if they want their roads to be sprayed, the announcement said.

Tarrant County Public Health announced Aug. 7 the county’s first human case of the West Nile virus during the 2019 season. The department said the case is in northwest Tarrant County but did not specify a city.

TCPH also announced June 19 a mosquito sample collected in the city of Colleyville tested positive for West Nile. The sample was also the first for the 2019 season.