A 55 year old former elementary school teacher has pleaded no contest to  second and third degree sexual abuse of a minor.

Anna Andersen had originally been charged with first-degree sexual abuse as well as five counts of second degree sexual abuse and one count of third degree sexual abuse of a minor. She entered the pleas in Laramie County District Court Monday as part of an agreement with prosecutors.

Prosecutors say one incident occurred while the victim was hospitalized at Cheyenne Regional Medical Center.

Andersen had been a teacher at Freedom Elementary School prior to her arrest last spring. The plea agreement doesn't call for a specific sentence, and she could receive up to 20 years in prison on the second degree sexual abuse charge and up to 15 on the third degree charge.

A sentencing date has not yet been set in the case.

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