Southside ISD will host several Spring 2026 Immunization Drives to help families keep students up to date on required vaccines. Clinics will be held on March 16 at Heritage Elementary and April 14 and May 19 at Menchaca ECC from 2:30–6:00 PM. Appointments are required. Families can register online or call to schedule. Please bring a copy of the student’s vaccine record, and a parent or guardian must be present at the appointment.