IDPH prepares for availability of COVID-19 vaccine for children under 5 years old Ryan Voyles 3 years ago The Illinois Department of Public Health said this week it’s working with providers to begin vaccinating children younger than 5 upon federal approval.To access this content, you must purchase 1 Year Health News Illinois Subscription or 1 Year Group Subscription - Up to 5 Users, or log in if you are a member.