It is important to have a Screening Checklist for Contraindications to Vaccines in order to ensure the safety of individuals receiving the vaccine. A screening checklist helps identify health issues that could cause someone harm if they received the vaccine. For example, if an individual has a severe allergy or immune deficiency, they may be at a higher risk of potentially serious side effects from receiving the vaccine. Similarly, there are certain medical conditions that mean a person should not take certain vaccines. Therefore, it is essential to identify these contraindications prior to administering the vaccine.