An Oak Cliff resident has been diagnosed with West Nile virus, the fourth case in Dallas County this year.

The victim lives in the 75224 ZIP code, a pocket defined by Wright St. in the north, Ledbetter Dr. in the south, Beckley Ave. in the east and S. Hampton Dr. in the west. Health officials are not releasing the individual's age or gender, said Dallas County Health and Human Services spokeswoman Pamela Smith.

DCHHSdirector Zach Thompson said the person was diagnosed with the neuroinvasive form of the virus, the most severe.

The health department urges residents to use a spray containing the chemical DEET when outside and to wear pants and long sleeves, especially during dawn and dusk hours.

Last August, the virus had claimed seven lives and sickened 123 in Dallas County alone. Thompson and the health department have been proactive in ground spraying and preaching preventative efforts to the public since.

"The first line of defense to prevent West Nile virus infection is to avoid getting bitten in the first place," said DCHHS medical director Dr. Christopher Perkins in a prepared statement.

There have been 90 positive mosquito traps found in the county this year, Smith said. None of those were in the 75224 ZIP code.

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