What is one of the main functions of Immunization Information Systems (IISs)?

One of the main functions of Immunization Information Systems (IISs) is to assist in vaccination status assessment. IISs are designed to collect and manage immunization data for individuals, which enables healthcare providers to easily access a person's vaccination history. This functionality is critical for determining whether an individual is up-to-date with their vaccinations, which can inform clinical decisions, minimize missed vaccinations, and help in public health initiatives aimed at preventing the spread of vaccine-preventable diseases.

While tracking vaccine inventory levels and recording patient demographics are important aspects of immunization management, they are ancillary to the primary focus of IISs on tracking immunization records. Providing immunization education is also vital; however, this typically falls outside the core functions of IISs, as their main role centers on data management rather than direct education delivery.