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Weekly cumulative counts and coverage percentages of Chicago residents considered up to date with influenza vaccines, broken down by race-ethnicity, sex, and age group. The Chicago Department of Public Health (CDPH) estimates coverage using data from the Illinois Comprehensive Automated Immunization Registry Exchange (I-CARE) and population counts from the 2020 U.S. Decennial Census. Data is provisional and updated weekly, with the most recent update on 2026-03-22.
Coverage percentages are capped at 99%. Data is provisional and recent dates may be incomplete. Care is needed when summing rows due to 'All' options in demographic breakdowns.