If you want to update an incomplete IIS record, you can request vaccination records from prior health care providers, local (city or regional) health departments, or your state health department. The CDC suggests checking with parents or caregivers (including reviewing stored files and baby books), previous schools or employers (including the military), physician’s offices or health clinics, and state health departments for vaccination records. You can find additional tips to locate old immunization records here. Once you locate additional records, you can ask your medical provider to update your records in your state’s IIS system.
Remember, IIS functionality varies by state: The
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