Dallas County health officials will provide free tuberculosis testing to some middle school students who may have been exposed to the bacteria.

The Dallas County Department of Health and Human Services said it will provide testing to a small group of Sam Tasby Middle School students on Tuesday and Thursday. Texas requires such screening when there is suspicion of exposure.

“The chance of any person at Tasby Middle School being infected by tuberculosis is low,” said Dr. Garry Woo, a county medical director for the tuberculosis elimination division. “This testing and our investigation is no reason for alarm among parents, teachers or students,” Dr. Woo said in a news release.

Parents with any questions or concerns were asked to call the county health department at 214-819-2081.