Free Flu Shots for All Students January 22, 2018 by webmaster On Tuesday, January 23, and Wednesday, January 24, Health Heroes Texas brings flu vaccination clinics to all Southside ISD campuses. Students who return a signed consent form will be signed up to receive a FREE flu shot during the school day. A flyer will be sent home with your child today.Dates and times are listed here. All forms can be downloaded from the campus and district websites.