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CRANE, Texas – A small high school in Texas is changing their sex-ed curriculum after a chlamydia outbreak.

Crane High School says about 20 students have the sexually transmitted disease.

The Centers for Disease Control says the outbreak is at “epidemic proportions.”

On Monday, school district officials met to discuss their three-day course on abstinence.

They now want to include a discussion on the risks of STD’s.

Last week, the school sent letters home to parents, letting them know about the problem.

“We do have an abstinence curriculum, and that’s evidently ain’t working. We need to do all we can, although it’s the parents’ responsibility to educate their kids on sexual education,” said Jim Rumage, superintendent for the Crane Independent School District.

The school board will vote May 19 on the changes to the sex-ed curriculum.