Two-day vaccination event to be held at Woodlawn Elementary School Federica Narancio/AP Pharmaceutical company Pfizer announced on its website that it had received permission from the Food and Drug Administration that they can enroll children as young as 12 in its COVID-19 vaccine trial. (Federica Narancio/AP) and last updated 2021-06-28 18:16:36-04 CLARKSVILLE, Tenn. (WTVF) â The Montgomery County Health Department will host a two-day COVID-19 vaccine event at Woodlawn Elementary School from June 30 to July 1. The event will last from 9 a.m. to noon each day. And for those who can't make it to the event, the county health department will still administer the vaccine every weekday from 11 a.m. to 3 p.m. at Moore Magnet Elementary School. The Moore Magnet location will remain active until July 30.