Figure 2.1. Number of reported acute hepatitis B virus cases and estimated infections* — United States, 2012–2019

Figure 2.1. Number of reported acute hepatitis B virus cases and estimated infections* — United States, 2012–2019

Source: CDC, National Notifiable Diseases Surveillance System.
* The number of estimated viral hepatitis infections was determined by multiplying the number of reported cases that met the classification criteria for a confirmed case by a factor that adjusted for underascertainment and underreporting. The 95% bootstrap confidence intervals for the estimated number of infections are displayed in the Appendix.

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The number of acute hepatitis B cases reported each year in the United States has remained relatively stable during 2012–2019, with a low of 2,791 reported during 2014 and a high of 3,409 cases reported during 2017. During 2019, the number of reported cases was 3,192, which corresponds to 20,700 estimated infections after adjusting for case underascertainment and underreporting.

Source: Klevens RM, Liu, S, Roberts H, et al. Estimating acute viral hepatitis infections from nationally reported cases. Am J Public Health 2014;104:482. PMC3953761
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