*Jefferson County, Alabama; Maricopa County, Arizona; Los Angeles, San Diego County, and Santa Clara, California; District of Columbia (DC); Dade and Duval counties, Florida; Fulton/DeKalb County, Georgia; Chicago, Illinois; Marion County, Indiana; Orleans Parish, Louisiana; Baltimore, Maryland; Boston, Massachusetts; Detroit, Michigan; Newark, New Jersey; New York, New York; Cuyahoga and Franklin counties, Ohio; Philadelphia County, Pennsylvania; Davidson and Shelby counties, Tennessee; Bexar, Dallas, and El Paso counties, and Houston, Texas; King County, Washington; and Milwaukee County, Wisconsin.
†For this reporting period (January-December 2000), NIS included children born during February 1997-May 1999.
‡Range of state-specific coverage during 2000—4:3:1:3 combination: 68.2%-86.9%; 4:3:1:3:3 combination: 63.5%-82.8%. DTaP3: ≥90%; DTaP4: 72.8%-91.6%. OPV3, 1MMR, and HepB3: ≥85% except in a few states. Hib3: ≥90% except in three states. Variation in coverage was greatest among children who had received one dose of varicella vaccine: 38.0%-84.5% (estimate).