One of the pools was located near Panther Creek Parkway and Teel Parkway in the Grayhawk neighborhood.
The other pool was located south of Main Street in the Village Lakes neighborhood between Legacy Drive and Teel Parkway.
The city shared a list of precautions for West Nile virus promoted by the Texas Department of State Health Services:
• Use approved insect repellents that contain DEET, picaridin or oil of lemon eucalyptus every time you go outside.
• Drain standing water that collects in bird baths, French drains, clogged gutters, saucers under potted plants and “splash blocks” at the end of gutter down spouts.
• Wear long sleeves and pants at dawn and dusk.
• Use air conditioning and make sure doors and windows have intact screens.
The latest positives bring Frisco's total to 14 mosquito pools that have tested positive for West Nile virus this season. No human cases of the virus have been confirmed in Frisco, though Plano officials announced Sept. 2 that a human case had been identified there.
Frisco began testing for mosquitoes May 1.
The Village Lakes neighborhood near Copper Point Lane was also the location of the eighth positive pool confirmed by the city on Aug. 14.
Frisco confirmed the first positive test of a mosquito pool near Oakbrook Park along Hickory Street on May 29.
The Cottonwood Creek Greenbelt area was the location of the second positive test reported on June 5. Frisco then sprayed for mosquitoes in that area July 11-12, July 25-26, Aug. 1-2, Aug. 8-10 and Aug. 29-30 after the fourth through seventh and 10th mosquito pools tested positive for West Nile virus.
The third positive test was confirmed June 22, when city officials said they would be increasing surveillance efforts and treating areas near Whitefish Lake Drive and the Plantation Springs neighborhood. Plantation Springs is located south of Lebanon Road and north of the Sam Rayburn Tollway on Frisco's east side.
The ninth positive test was reported Aug. 21 near Hickory Creek, which is near the intersection of Hickory Street and Preston Road.
Frisco confirmed the 11th and 12th positive pools Sept. 11 along Hickory Street near Oakbrook Park and along North County Road near the Warren Sports Complex.
Additional information about Frisco's Mosquito Surveillance and Response Plan is available at www.friscotexas.gov/mosquitoes.