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New Study Tracks West Nile Virus

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CBS St. Louis (con't)

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DALLAS, TX (KMOX) - An analysis of eleven years of West Nile Virus outbreaks across the U.S. is shedding new light on the spread of the disease.

One thing they found was that West Nile Virus hot spots tend to repeat. Same geographic areas tend to get hit time and time again. Another indicator; weather.

“Our outbreak years in 2012 and 2006 were associated with a lack of winter freezes.” said Doctor Wendy Chung with the Dallas, Texas County Health Department. She says more specifically, below 28 degrees.

The study, by the Journal of the American Medical Association, examined her county because it had the most West Nile Virus illness in the country last year: 398.

Missouri had 20.

Through July 9th of this year the report shows no human cases in Missouri or Illinois.

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