At a glance
Rates* of reported cases† of hepatitis A, by state or jurisdiction — United States, 2021–2022
Source: CDC, National Notifiable Diseases Surveillance System.
* Rates per 100,000 population.
† Reported confirmed cases. For the case definition, see Acute Hepatitis A.
Only states with rates for 2021 and 2022 are shown. State/jurisdiction and year for no reported cases: District of Columbia (2021).
State or jurisdiction ranked in decreasing order by the 2022 rate, 2021 rate, and then alphabetical order by name.
Summary
During 2022, the rates of reported hepatitis A ranged from a high of 4.6 cases per 100,000 population in Mississippi and Maine to a low of 0.1 cases per 100,000 population in Connecticut and Oklahoma. Changes in rates during 2021 and 2022 were influenced by timing of hepatitis A outbreaks in jurisdictions.
The largest absolute increase in rates was observed in Maine, with a rate during 2022 of 4.6 cases per 100,000 population compared to 3.6 cases per 100,000 population in 2021.
In contrast, the largest absolute decrease in rates was observed in Arkansas where the 2022 rate was 0.7 cases per 100,000 population, a decrease from a rate of 15.5 cases per 100,000 population in 2021.