A Dallas resident has been diagnosed with West Nile fever, the county's sixth human case of the virus this year.

The patient lives in the 75224 ZIP code in Oak Cliff, the same area where a man was diagnosed with the neuroinvasive form of West Nile, the most severe form of the virus. The victim is a 58-year-old man, said Pamela Smith, spokeswoman for Dallas County Health and Human Services.

The Mayo Clinic categorizes West Nile fever as a 'mild infection' that triggers head and body aches, fatigue, back pain and occasionally a skin rash, swollen lymph glands and eye pain. Again, this case is not the more serious neuroinvasive form of the virus, which infects fewer than 1 percent of victims and can cause death.

The county has now logged two cases of West Nile in Dallas, one in University Park, one in Garland, one in Grand Prairie and another in Garland.

This season remains a far cry from the results of 2012, when the virus claimed seven lives and sickened 123.

Residents are advised to use insect repellents that contain the chemical DEET; dress in long sleeves and long pants, especially during dawn and dusk; and to drain any standing water.

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