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NYSIIS - New York State Immunization Information System

The New York State Immunization Registry Law requires healthcare providers outside of New York City to report all immunizations administered to persons less than 19 years of age, along with the person's immunization histories, to DOH using NYSIIS. New York City providers have a separate reporting system, the Citywide Immunization Registry. These systems were used to collect vaccine administration information for patients of all ages during the COVID-19 pandemic.