Jackrabbit tracks a student's immunization and medical requirements on a per student basis. Each immunization or requirement can be tracked by date and is color-coded to quickly show complete, overdue, or due in 30 day items. Immunizations for each student are maintained on the Student's Medical tab and can be reported on using Reports > Immunization/Reqs Report. See Student Reports.
Working with Immunizations / Requirements is a user permission. Use Tools > Manage Users & Permissions to update these.