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Polk County, Florida -- The Polk County School Board voted unanimously to fire one of its teachers.

Jennifer Fichter was a teacher at Central Florida Aerospace Academy in Lakeland. Police say she admitted to having sex with a 17-year-old student 20 or 30 times since November.

LINK:Red flags missed in teacher sex case

Authorities say she even got pregnant and then got an abortion.

Fichter remains in the Polk county jail tonight.

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