AUG 17, 2026 · JOURNAL ARTICLE
Serologic Immunity to Hepatitis A and B in US Adults and High-Risk Populations
JAMA Internal Medicine
Large, nationally representative cross-sectional survey with rigorous weighting and multivariable analysis identifying prevalence and risk factors for hepatitis A and B immunity across the US adult population and high-risk subgroups.
Reported
Estimated US adult population rep…226.1 million
HAV serologic immunity prevalence39.5%
HAV immunity 95% CI37.7%-41.3%