The Grayson County Health Department has announced that a recent survey of the local mosquito population returned negative results for the presence of West Nile Virus. The report comes mere days after officials in Cooke County reported positive tests for the virus in Gainesville.

The Grayson County Health Department has announced that a recent survey of the local mosquito population returned negative results for the presence of West Nile Virus. The report comes mere days after officials in Cooke County reported positive tests for the virus in Gainesville.


"The Texas A&M Veterinary Medical Diagnostic Laboratory reports did not indicate the presence of the WNV in any of the 54 mosquito pools submitted for analysis," GCHD Director Amanda Ortez said in a press release issued Thursday. The test includes mosquito samples from June 5 through July 10.


In 2014, the GCHD conducted 527 tests, with 17 testing positive for the virus.


On Monday, officials with Cooke County and Gainesville announced the first positive test for the disease in the County’s mosquito population since it started testing in 2012. The city of Gainesville will spray for mosquitoes starting at 9:30 on July 29.