Availability of information on risk behaviors or exposures* associated with reported cases of acute Hepatitis C virus infection — United States, 2021
Source: CDC, National Notifiable Diseases Surveillance System.
* Case reports with at least one of the following risk behaviors/exposures reported 6 weeks to 6 months prior to symptom onset or documented seroconversion if asymptomatic: 1) injection drug use; 2) multiple sexual partners; 3) underwent surgery; 4) men who have sex with men; 5) sexual contact with suspected/confirmed hepatitis C case; 6) sustained a percutaneous injury; 7) household contact with suspected/confirmed hepatitis C case; 8) occupational exposure to blood; 9) dialysis; and 10) transfusion. Reported cases may include more than one risk behavior/exposure.
Among the 5,023 case reports of acute hepatitis C received by CDC for 2021, data regarding risk behaviors and exposures were missing for 3,306 (66%) cases. At least one risk behavior or exposure was reported for 1,129 (22%) cases during the 6 weeks to 6 months before illness onset; 588 (12%) cases had no risk behavior or exposures identified. More than one risk can be reported for each case. (See below Table 3.3.)
- Figure 3.1. Number of reported cases of acute hepatitis C virus infection and estimated infections — United States, 2014–2021
- Figure 3.2. Rates of reported cases of acute hepatitis C virus infection, by state or jurisdiction — United States, 2020–2021
- Figure 3.3. Rates of reported cases of acute hepatitis C virus infection, by state or jurisdiction — United States, 2021
- Figure 3.4. Rates* of reported cases of acute hepatitis C virus infection, by age group — United States, 2006–2021
- Figure 3.5. Rates of reported cases of acute hepatitis C virus infection, by sex — United States, 2006–2021
- Figure 3.6. Rates of reported cases of acute hepatitis C virus infection, by race/ethnicity — United States, 2006–2021
- Figure 3.7. Availability of information on risk behaviors or exposures associated with reported cases of acute hepatitis C virus infection — United States, 2021
- Figure 3.8. Number of newly reported chronic hepatitis C virus infection cases by sex and age — United States, 2021
- Figure 3.9. Rates of death with hepatitis C virus infection listed as a cause of death among residents, by state or jurisdiction — United States, 2021
- Table 3.1. Numbers and rates of reported cases† of acute hepatitis C virus infection, by state or jurisdiction — United States, 2017–2021
- Table 3.2. Numbers and rates of reported cases† of acute hepatitis C virus infection, by demographic characteristics — United States, 2017–2021
- Table 3.3. Reported risk behaviors or exposures among reported cases of acute hepatitis C virus infection — United States, 2021
- Table 3.4. Number of newly reported cases of perinatal hepatitis C virus infection, by state or jurisdiction — United States, 2021
- Table 3.5. Number and rate of newly reported cases of chronic hepatitis C virus infection, by state or jurisdiction — United States, 2021
- Table 3.6. Number and rate of newly reported cases of chronic hepatitis C virus infection, by demographic characteristics — United States, 2021
- Table 3.7. Numbers and rates of deaths with hepatitis C listed as a cause of death among residents, by state or jurisdiction — United States, 2017–2021
- Table 3.8. Numbers and rates of deaths with hepatitis C virus infection listed as a cause of death among residents, by demographic characteristics — United States, 2017–2021