Rates* of reported cases† of hepatitis A virus infection, by state or jurisdiction — United States, 2019-2020

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Figure 1.3 ▶
Rates* of reported cases † of hepatitis A virus infection, by state or jurisdiction — United States, 2019-2020
Distribution of rates of reported hepatitis A, by state or jurisdiction, for 2018 and 2019, sorted from highest to lowest for 2019. The US rate in 2019 was 5.7 reported cases per 100,000 population. Tennessee and Kentucky had the highest rates of reported hepatitis A during 2019. Download Data (xlsx)

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Source: CDC, National Notifiable Diseases Surveillance System.

* Rates per 100,000 population.

† Reported confirmed cases. For the case definition, see Acute Hepatitis A.

Alaska was not included as no hepatitis A cases were reported in 2020.

State or jurisdiction ranked in decreasing order by the 2020 rate, 2019 rate, and then alphabetical order by name.

During 2020, the rates of reported hepatitis A ranged from a high of 22.9 cases per 100,000 population in South Carolina to a low of 0.1 cases per 100,000 population in South Dakota and North Dakota. Changes in rates during 2019 and 2020 were influenced by timing of outbreaks within jurisdictions.

The largest absolute increase in rates was observed in Kansas, with a rate during 2020 of 10.9 cases per 100,000 population, 36 times the rate reported during 2019 (0.3 cases per 100,000 population).

In contrast, the largest absolute decrease in rates was observed in Kentucky, where the 2020 rate (1.3 cases per 100,00 population) decreased by 96% from the rate reported during 2019 (29.5 cases per 100,000 population), as an outbreak associated with person-to-person transmission in Kentucky was resolving.

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