Prepared annually by Carl Armon, PhD, and James Todd, MD, from the Department of Epidemiology at Children’s Hospital Colorado, the Vaccine-Preventable Disease of Colorado's Children Report provides an analysis of the state of health of Colorado’s children based on the most recent National Immunization Survey (NIS), Colorado Hospital Association (CHA) discharge data and Colorado Department of Public Health and Environment (CDPHE) data. The report examines vaccination rates, hospitalizations, costs and savings associated with vaccine-preventable disease in children.