First Case of West Nile Virus Confirmed in Oklahoma - KTUL.com - Tulsa, Oklahoma - News, Weather & Sports

First Case of West Nile Virus Confirmed in Oklahoma

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The first case of West Nile virus (WNV) in Oklahoma has been confirmed in a Major County resident, according to a press release from the Oklahoma State Department of Health (OSDH). 

The OSDH encourages residents to take precautions to reduce the risk of contracting WNV, a mosquito-borne illness. 

Summertime typically marks the beginning of the WNV season in Oklahoma, with outdoor activities providing opportunities for encountering infected mosquitoes. Although the severity of this year's WNV season cannot be predicted, it is important to know the highest risk months in Oklahoma for WNV exposure occur from July through October.

During 2013, 84 cases of WNV were confirmed among Oklahoma residents, including 8 deaths. Cases ranged in age from 17 to 92 years. WNV is spread through the bite of the Culex mosquito, which feeds on infected birds and transmits the virus when biting humans, horses, and some other mammals.

Symptoms of WNV include sudden onset of fever, headache, dizziness, and muscle weakness. Long-lasting complications can include difficulty concentrating, migraine headaches, extreme muscle weakness and tremors, and paralysis of a limb. If one or more of these symptoms develop, especially after suffering mosquito bites within the previous two weeks, a health care provider should be contacted.

Persons over the age of 50 are at greatest risk of developing severe neurologic disease from WNV. Some of the neurological effects of WNV may be permanent.

Among the precautions to take against mosquito bites are the following:

- Use an insect repellent containing DEET on exposed skin and clothing when you go outdoors, particularly if you are outside between dusk and dawn when mosquitoes are more likely to bite. Insect repellent with permethrin should be used on clothing only.

- Repair or install window and door screens to keep mosquitoes out of your home.

- Prevent items such as buckets, cans, pool covers, flower pots, and tires from holding standing water so mosquitoes don't have a place to breed.

- Empty your pet's outdoor water bowl and refill daily.

- Clean leaves and debris from rain gutters regularly to ensure they are not clogged.

For more information, visit the Oklahoma State Department of Health's WNV website at http://go.usa.gov/wpz. 

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