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Updated: Jun 16, 2026

Real-Time Polymerase Chain Reaction-Based Detection and Quantification of Hepatitis B Virus DNA
Published on: December 15, 2023
Hepatitis B and hepatitis C prevalence and treatment referral among Asian Americans undergoing community-based
Jessica P Hwang1, Mahfam Mohseni, Beverly J Gor
1Department of General Internal Medicine at University of Texas M D Anderson Cancer Center, Houston, USA. jphwang@mdanderson.org
Insights
Hepatitis B virus (HBV) and hepatitis C virus (HCV) screening at community health fairs identified significant prevalence in Asian Americans. Comprehensive testing improved chronic HBV diagnosis, and successful referrals ensured patients received follow-up care.
Area of Science:
- Hepatology
- Infectious Diseases
- Public Health
Background:
- Hepatitis B virus (HBV) and hepatitis C virus (HCV) pose significant health burdens, particularly in certain ethnic groups.
- Community health fairs offer a platform for targeted screening and early detection of viral hepatitis.
Purpose of the Study:
- To determine the prevalence of HBV and HCV among Asian Americans at a community health fair.
- To evaluate the effectiveness of referral systems for individuals diagnosed with HBV or HCV.
Main Methods:
- Hepatitis B virus (HBV) screening utilized hepatitis B surface antigen (HBsAg), antibodies to hepatitis B core antigen (anti-HBc), and antibodies to hepatitis B surface antigen (anti-HBs).
- Hepatitis C virus (HCV) screening involved testing for hepatitis C antibodies.
- Successful referral was defined by medical evaluation and provision of specialist contact information.
Main Results:
- Out of 202 participants, 118 were Asian Americans. Chronic HBV prevalence was 10.2% (HBsAg positive), increasing to 13.6% with additional serological markers.
- HCV prevalence was 6% overall, with a higher rate of 15.4% among Vietnamese participants.
- Referral success rates were high: 83% for chronic HBV and 100% for occult HBV or HCV.
Conclusions:
- Combined testing for HBsAg, anti-HBc, and anti-HBs enhances the diagnosis of chronic and occult HBV infections, which may be missed by HBsAg testing alone.
- Community-based screening events can effectively identify individuals with HBV or HCV and facilitate successful referrals for specialized medical care.
Objectives:
We sought to identify cross-sectional hepatitis B virus (HBV) and HCV prevalence among Asian Americans at a community health fair and to assess referral rates.
Methods:
We determined HBV prevalence with hepatitis B surface antigen (HBsAg), antibodies to hepatitis B core antigen (anti-HBc), and antibodies to hepatitis B surface antigen (anti-HBs). We determined HCV prevalence with hepatitis C antibodies. Successful referral occurred when participants with HBV or HCV were contacted, medically evaluated, and given contact information of liver specialists for care.
Results:
Of 202 people screened, 118 were Asian Americans (65 Chinese and 39 Vietnamese). Twelve had chronic HBV with positive HBsAg. However, chronic HBV prevalence increased from 10.2% to 13.6% by concomitant HBsAg, anti-HBc, and anti-HBs testing. Prevalence of HCV was 6% overall but 15.4% among Vietnamese. Overall, 83% of patients with chronic HBV and 100% of patients with occult HBV or HCV were successfully referred.
Conclusions:
Concomitant HBsAg, anti-HBc, and anti-HBs testing permits diagnosis of chronic, occult HBV infections missed by testing with HBsAg alone. Persons identified with HBV or HCV at community health fairs can be successfully referred.
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