CORPUS CHRISTI — A 12-year-old Flour Bluff student died of swine flu Tuesday after her brain swelled because of the virus, Corpus Christi-Nueces County Public Health District officials reported. The girl, whose name isn’t being released by authorities, is the first child to die of swine flu in Nueces County. Her death is the fifth in the county related to the H1N1 virus. The Flour Bluff Intermediate School she attended and others in the district were being thoroughly cleaned Tuesday and will remain open, officials said. The sixth-grader was admitted Saturday to Driscoll Children’s Hospital. She played soccer Thursday and didn’t feel well that night, Nueces County health authority Dr. William Burgin said. The girl stayed home from school Friday and was in the hospital’s intensive care unit during the weekend, he said. At the hospital Saturday, doctors performed a brain scan on the girl and results were normal, he said. But within hours, the girl developed brain swelling and was placed on a ventilator. Hospital doctors pronounced her brain-dead Monday and she died Tuesday, Burgin said.