FILE - In this Aug. 16, 2012 file photo, mosquitos are sorted at the Dallas County mosquito lab in Dallas. U.S. health officials say there's been an alarming increase in the number of West Nile cases. So far there have been more than 1,100 cases reported through the middle of August. That's three times as many as usually seen at this point in the year. About half the cases are in Texas. Most West Nile infections are reported in August and September. (AP Photo/LM Otero, File)
DALLAS (AP) - Four more West Nile virus deaths have been reported in Texas, bringing the state's 2012 total to at least 26.
Houston health officials report their second and third West Nile deaths of the year.
Two more were reported in the Dallas-area, which has been the focus of this year's U.S. outbreak. One death in Dallas County and one in Collin County brings the Dallas-Fort Worth area's death toll to 18, by far the most in the country. The Collin County death was the first for that suburban Dallas county.
More than 260 human cases have been confirmed in Dallas County alone, which has begun aerial spraying for mosquitoes. Harris County officials have scheduled aerial spraying for Wednesday in northwestern Harris County.
Mosquitoes spread the virus from birds to people.
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