TOLEDO, Ohio-The Toledo-Lucas County Health Department is emphasizing the importance of back-to-school vaccinations for students. Vaccinations help build immunity against preventable diseases. Specific vaccine requirements are mandated for students entering Kindergarten, 7th grade, and 12th grade. The department hosts the Shots 4 Tots n Teens clinic, which accepts both walk-ins and appointments for various immunizations, including Diphtheria.