Viral Hepatitis Surveillance: Provisional 2024 Data Summaries

Highlights

Hepatitis A & hepatitis A-related deaths

• During 2024A, a total of 1,607 hepatitis A cases were reported to CDC by 50 states and the District of Columbia, corresponding to an estimated 3,200 infections (95% CI: 2,200–3,500)B after adjusting for case underascertainment and underreporting.C
• The reported case count in 2024 corresponds to a rate of 0.5 cases per 100,000 population, remaining stable from 2023.
• From 2016–2023, the United States experienced widespread and prolonged hepatitis A outbreaks associated with person-to-person transmission, primarily among persons who use drugs and persons experiencing homelessness. The hepatitis A rate peaked in 2019 and then declined through 2024, with the 2023 and 2024 rates returning to levels seen prior to the start of the widespread outbreaks in 2016.

Acute hepatitis B

• During 2024,A 2,995 acute hepatitis B cases were reported to CDC by 46 states and the District of Columbia,D corresponding to a rate of 0.9 cases per 100,000 population. After adjusting for case underascertainment and underreporting, the estimated number of HBV infections was 19,500 (95% CI: 11,100–47,600).BC
• Following a decade of a relatively stable rate of reported cases from 2011–2019, a decrease was observed from 2019–2020 and the national rate remained stable through 2023. However, from 2023–2024, the national rate increased 35%, likely reflecting enhanced case ascertainment associated with jurisdictions implementing the 2024 acute hepatitis B case definition,E which expanded laboratory criteria for confirming infection and removed certain clinical requirements when sufficient laboratory evidence is available.

Chronic hepatitis B & hepatitis B-related deaths

• During 2024,A 27,737 cases of chronic hepatitis B were newly reported to CDC by 44 states and the District of ColumbiaF, corresponding to a national rate of 9.5 cases per 100,000 population.
• The 56% increase in the national case rate from 2023–2024 likely reflects jurisdictional adoption of the updated 2024 chronic hepatitis B case definitionE, which aligns with evolving testing practices and improved laboratory confirmation compared with the 2012 definition. Expanded implementation of the 2023 hepatitis B universal one-time screening recommendationG for adults may have also increased identification of previously undiagnosed chronic infections. Chronic hepatitis B surveillance data are not a measure of prevalence.
• 1,656 deaths had hepatitis B listed as a cause on the death certificate, corresponding to an age-adjusted death rate of 0.40 deaths per 100,000 population.

Acute hepatitis C

• During 2024,A a total of 5,568 acute hepatitis C cases were reported to CDC by 46 states and the District of Columbia,H corresponding to a rate of 1.7 cases per 100,000 population. After adjusting for case underascertainment and underreporting, the estimated number of HCV infections was 77,400 (95% CI: 61,200–263,900).BC
• Following a decade of increasing rates from 2011–2021, the rate remained relatively stable from 2021–2023 and increased by 13% from 2023 (1.5 per 100,000 population) to 2024 (1.7 per 100,000 population). The 2024 increase likely reflects 1) more cases detected based on seroconversion as more jurisdictions implement negative laboratory reporting and 2) increased testing in high-impact settings coupled with surveillance capacity to investigate cases suspected of having acute infection.

Chronic hepatitis C & hepatitis C-related deaths

• During 2024,A 84,472 cases of chronic hepatitis C were newly reported to CDC by 45 states and the District of ColumbiaI, corresponding to a rate of 29.7 cases per 100,000 population. Chronic hepatitis C surveillance data are not a measure of prevalence.
• 10,283 deaths had hepatitis C listed as a cause on the death certificate, corresponding to an age-adjusted death rate of 2.25 deaths per 100,000 population.

Perinatal hepatitis B & hepatitis C

• In 2024,A perinatal hepatitis B was a reportable condition in all 50 states and the District of ColumbiaJ; 7 cases were reported from 6 states, unchanged from 2023.
• In 2024,A perinatal hepatitis C was a reportable condition in 49 states and the District of Columbia.K A total of 260 perinatal hepatitis C cases were reported to CDC from 32 states during 2024, representing an increase of 25 cases compared to 2023.

Explore CDC viral hepatitis surveillance data

HepTracker allows users to view case surveillance and viral hepatitis-related mortality data for hepatitis A, hepatitis B, and hepatitis C. These data are important for understanding viral hepatitis trends, informing and developing effective public health programs, and monitoring progress toward eliminating viral hepatitis as a public health threat in the United States.

View HepTracker dashboard.

Data sources

• CDC, National Notifiable Diseases Surveillance System. Reported confirmed cases only. Data updated as of January 17, 2026. Data for 2024 available in HepTracker are considered provisional and subject to change. CDC expects the 2024 viral hepatitis surveillance data to be finalized in the fall of 2026.
• CDC, National Center for Health Statistics (NCHS), Multiple Cause of Death on CDC WONDER online database. Data updated as of March 6, 2026. Data are based on information from all death certificates filed in the vital records offices of the 50 states and the District of Columbia through the Vital Statistics Cooperative Program or coded by NCHS from copies of the original death certificates provided to NCHS by the State registration offices. Deaths of nonresidents (for example, nonresident aliens, nationals living abroad, residents of Puerto Rico, Guam, the Virgin Islands, and other US territories) and fetal deaths are excluded. CDC WONDER dataset documentation and technical methods can be accessed here.