Texas is said to be battling an outbreak of the West Nile virus. According to PBS NEWS HOUR, so far this summer, West Nile virus has caused 10 deaths in the Dallas area out of more than 200 cases. Nationwide, the Centers for Disease Control and Prevention reports a total of at least 693 cases and 26 deaths. More than 80 percent of the cases have come in six states, Texas leading the way with 381 cases, California, South Dakota, Oklahoma, Louisiana and Mississippi. Overall, it’s the worst outbreak since West Nile virus appeared in New York City in 1999, the first time it had been detected in the U.S.