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Availability of information regarding risk behaviors or exposures* associated with reported cases† of hepatitis A — United States, 2022
Source: CDC, National Notifiable Diseases Surveillance System.
* Case reports with at least one of the following risk behaviors/exposures reported 2–6 weeks prior to symptom onset or documented seroconversion if asymptomatic: 1) injection drug use; 2) sexual, household, or other contact; 3) men who have sex with men; 4) travel to hepatitis A-endemic region. Reported cases may include more than one risk behavior/exposure.
† Reported confirmed cases. For the case definition, see Acute Hepatitis A.
Percentages may not total 100 due to rounding.
* Case reports with at least one of the following risk behaviors/exposures reported 2–6 weeks prior to symptom onset or documented seroconversion if asymptomatic: 1) injection drug use; 2) sexual, household, or other contact; 3) men who have sex with men; 4) travel to hepatitis A-endemic region. Reported cases may include more than one risk behavior/exposure.
† Reported confirmed cases. For the case definition, see Acute Hepatitis A.
Percentages may not total 100 due to rounding.
Among the 2,265 case reports of hepatitis A received by CDC for 2022, data regarding risk behaviors or exposures were missing for 900 (40%) cases. At least one risk behavior or exposure was reported for 512 (23%) cases during the 2–6 weeks before illness onset. More than one risk can be reported for each case. (See Table 1.3.)
Hepatitis A figures and tables
- Figure 1.1. Number of reported cases and estimated infections of hepatitis A — United States, 2015–2022
- Figure 1.2. Rates of reported cases of hepatitis A, by state or jurisdiction — United States, 2021–2022
- Figure 1.3. Rates of reported cases of hepatitis A, by state or jurisdiction — United States, 2022
- Figure 1.4. Rates of reported cases of hepatitis A, by age group — United States, 2007–2022
- Figure 1.5. Rates of reported cases of hepatitis A, by sex — United States, 2007–2022
- Figure 1.6. Rates of reported cases of hepatitis A, by race/ethnicity — United States, 2007–2022
- Figure 1.7. Availability of information regarding risk behaviors or exposures associated with reported cases of hepatitis A — United States, 2022
- Table 1.1. Numbers and rates of reported cases of hepatitis A, by state or jurisdiction — United States, 2018–2022
- Table 1.2. Numbers and rates of reported cases of hepatitis A, by demographic characteristics — United States, 2018–2022
- Table 1.3. Reported risk behaviors or exposures among reported cases of hepatitis A — United States, 2022
- Table 1.4. Numbers and rates of deaths with hepatitis A listed as a cause of death among residents, by demographic characteristics — United States, 2018–2022