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Reported risk behaviors or exposures among reported cases* of hepatitis A — United States, 2022
Source: CDC, National Notifiable Diseases Surveillance System.
* Reported confirmed cases. For the case definition, see Acute Hepatitis A.
† Reported cases may include more than one risk behavior/exposure. 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.
§ Cases with more than one type of contact reported were categorized according to a hierarchy: 1) sexual contact; 2) household contact (nonsexual); and 3) other contact with hepatitis A case.
¶ A total of 1,472 hepatitis A cases were reported among males in 2022.
Health departments might conduct investigations of newly reported hepatitis A cases to ascertain risk behaviors and exposures associated with infection. However, investigations might not be possible for all cases if patients are lost to follow-up or if health departments lack adequate resources for investigating all cases reported in their jurisdiction. Among the 927 (41%) cases that included information on injection drug use, 299 (32%) reported injection drug use.
- 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