The Pennsylvania Statewide Immunization Information System (PA-SIIS) is a statewide immunization registry that collects vaccination history information developed to achieve complete and timely immunization for all people.
Please contact PA SIIS to begin the enrollment process.
Managed by the Pennsylvania Department of Health, the Pennsylvania Statewide Immunization Information System (PA-SIIS) is a statewide immunization registry that collects vaccination history information. It was developed to achieve complete and timely immunization for all people, particularly in the age group most at risk: birth through two years of age. The PA-SIIS helps to serve the public health goal of preventing the spread of vaccine-preventable diseases. A major barrier to reaching this goal is the continuing difficulty of keeping immunization records accurate and up to date. The PA-SIIS addresses this problem by capturing immunization information from healthcare providers and storing this information in one central location. If a patient receives immunizations from more than one healthcare provider, the PA-SIIS consolidates the immunization information from all providers to create a complete and current record. This assists healthcare providers to age-appropriately immunize all patients in their care.
