Preschool teacher Brandee Overshown tries to calm down preschool student Kayden Wright, 3, with a sucker before he receives a vaccination shot from from Net Health nurse Christine Gomez during the Texas Medical Association's Be Wise-Immunize Clinic at the Tyler Day, Nursery Friday, Oct. 3, 2014, in Tyler, Texas. (AP Photo/The Tyler Morning Telegraph, Sarah A. Miller)

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