Definition: Number of reported cases of vaccine-preventable diseases, by disease.
Data Source: California Dept. of Public Health, Vaccine-preventable Disease Surveillance (Mar. 2016); U.S. Centers for Disease Control and Prevention, Morbidity and Mortality Weekly Reports (Mar. 2016); California Dept. of Finance, California County Population Estimates and Components of Change by Year (Mar. 2016); U.S. Census Bureau, Current Population Estimates, Vintage 2014 (Mar. 2016).
Footnote: Data are shown for 12 vaccine-preventable childhood diseases reported by the California Department of Public Health: diphtheria, Haemophilus influenzae, hepatitis A, hepatitis B, measles, meningococcal disease, mumps, pertussis (whooping cough), polio, rubella (German measles), tetanus (lockjaw), and varicella (chickenpox). Data reflect the number of reported cases with two exceptions in the data for California and counties: (1) Only varicella cases resulting in hospitalization or death are reported; (2) Haemophilus influenzae is only reported for children under age 15. N/A means data are not available or rates are not comparable. Zeros are shown. LNE (Low Number Event) refers to data that have been suppressed because there were more than 0, but fewer than 20 cases.