Last month, Fort Bend County health officials began testing at the school after an active case was found in May.
Officials are scheduling the second round of tests, which includes a blood draw, for Thursday.
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In the first round, 11 people were identified with a positive blood test, indicating an infection with the bacteria that causes the illness. Officials advised a positive result doesn't necessarily mean the person is ill with active tuberculosis.
Students were informed by letter of the testing date. A second letter was sent to those who did not require the additional testing.
Health officials test students at George Bush High School for tuberculosis
The first day of school in Fort Bend County ISD is scheduled for Aug. 22.
Officials: Active case of tuberculous found at George Bush HS, students will be tested
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