And time is short for those who haven't gotten the shots. Immunization guidelines approved by the General Assembly in 1999 require that all students born in 1994 and after must have the vaccination.
Full immunization takes two or three doses and requires several months between shots.
Students can start sixth grade in the fall if they show they have taken at least one shot and are scheduled to receive the remaining doses. Hepatitis B is a virus that affects the liver, and is spread by blood and body fluids. It's not always fatal, but can cause liver scarring, liver cancer and lifelong infection. Watch 13News for complete details, and live reports.