Federal officials are collecting data and examining factors for the West Nile outbreak that killed more than 240 in the U.S., about a third of them in Texas.
Meanwhile, in Dallas County, the epicenter of the outbreak, has begun year-round mosquito surveillance and testing. What remains unclear is whether experts will be able to shed light on what caused it, why parts of Texas were so severely affected, and if the next major surge can be forecast.
The city and county of Lubbock had a total of 16 confirmed cases this year, none of them fatal.
