Oklahoma City-County Health Department detects mosquitoes carrying West Nile Virus


OKLAHOMA CITY (KFOR) – Oklahoma City-County Health Department (OCCHD) epidemiologists confirmed that a sample of mosquitoes from a trap in Oklahoma County has tested positive for West Nile Virus (WNV).

There have been no confirmed cases of WNV in humans in Oklahoma County this year.

Mosquito trap samples are taken and tested once a week for the presence of mosquito-borne illness.

The goal of the surveillance is to detect the presence of disease carrying mosquitoes, determine the population, species, and make a risk assessment with the release of the weekly “Skeeter Meter” which shows Oklahoma County’s risk to be normal at this time.

“It is an awareness tool used to alert residents of OKC-County of the risk from disease carrying mosquito activity,” said OCCHD Epidemiologist Cynthia Bates.

Typically, the months of July through October are the most active for exposure to WNV in Oklahoma.

Oklahoma County has experienced West Nile Virus cases every year since 2012.

West Nile Virus is spread through the bite of an infected mosquito, which feeds on infected birds and then transmits the virus when biting humans, horses, and some other mammals.  Symptoms include a sudden fever, headache, dizziness, and muscle weakness. 

Many individuals impacted by the virus may not have symptoms, however the virus can cause major illness and death in some people.  
Steps to Fight the Bite:

  • Drain buckets, cans, pool covers, pots, and tires from holding standing water so mosquitoes do not have a place to breed.
  • Use an insect repellent containing DEET or other CDC approved repellents on exposed skin and clothing when you go outdoors.
  • Repair or install window and door screens to keep mosquitoes out of your home.
  • Clean leaves and debris from rain gutters regularly to ensure they are not clogged.

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