Estimating and Evaluating Immunization Coverage
Vaccination Coverage in the U.S.
Each year, the Centers for Disease Control and Prevention (CDC) conducts the National Immunization Survey (NIS), to estimate immunization coverage levels in 50 states and selected local areas. The reports cover children 19 to 35 months of age, adolescents 13 to 17 years of age, and adults.
The CDC also conducts the National Health Interview Survey (NHIS), a nationwide survey of adults providing information on vaccinations and other health data, and the Behavioral Risk Factor Surveillance System (BRFSS), a state-based survey of health behaviors of adults, including adult vaccination at national, regional, and state levels.
State Immunization Surveys
Each year, the Immunization Program conducts surveys to evaluate immunization coverage levels among select age groups in Florida and distributes the a variety of reports.
These outcomes provide individual analyses for childcare facilities and Head Start programs, kindergarten and seventh grade status, County Health Department (CHD) immunization coverage of one- and two-year-old children, and immunization status of two-year-old children. The survey of two-year-old children reflects immunization levels statewide and by selected counties. The CHD immunization status of two-year-old children are based on the 4-3-1-3-3-1 (four diphtheria-tetanus-pertusis, three polio, one measles-mumps-rubella, three Haemophilus influenzae type b, three hepatitis B, and one varicella) series.