Related Experiment Video
Updated: Aug 22, 2026

Real-Time Polymerase Chain Reaction-Based Detection and Quantification of Hepatitis B Virus DNA
Published on: December 15, 2023
[HIV and hepatitis B virus co-infection: prevalence and risk factors]
Milta Gomes de Souza1, Afonso Dinis Costa Passos, Alcyone Artioli Machado
1Departamento de Medicina Social, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP.
Insights
This study found a high prevalence of hepatitis B virus (HBV) markers in HIV patients. Key risk factors included age, education, jaundice history, incarceration, homosexual partnerships, and hepatitis C virus (HCV) co-infection.
Area of Science:
- Infectious Diseases
- Hepatology
- Virology
Context:
- Human immunodeficiency virus (HIV) infection significantly impacts immune function.
- Co-infection with hepatitis B virus (HBV) and hepatitis C virus (HCV) is common in HIV-positive individuals.
- Understanding HBV prevalence and risk factors in this population is crucial for clinical management.
Purpose:
- To determine the prevalence of hepatitis B virus (HBV) infection markers in HIV-infected patients.
- To identify potential risk factors associated with HBV infection in this cohort.
- To assess the rate of HBV/HCV co-infection.
Summary:
- A study of 401 HIV patients revealed a 40.9% prevalence of HBV markers.
- Significant risk factors for HBV included age, education, jaundice history, imprisonment, homosexual partnerships, and HCV co-infection.
- Hepatitis B surface antigen (HBsAg) was present in 8.5%, total anti-HBcAg in 39.7%, and anti-HBsAg in 5.5%.
Impact:
- Findings highlight the substantial burden of HBV in HIV-positive individuals.
- Identified risk factors can inform targeted screening and prevention strategies.
- The high rate of HBV/HCV co-infection (20.4%) underscores the need for integrated viral hepatitis management in HIV care.
Abstract:
The objective of this study was to assess the prevalence of hepatitis B virus and possible risk factors for this disease in 401 patients infected with the human immunodeficiency virus, followed at the University Hospital of the Ribeirão Preto Medical School, São Paulo State University. Each participant was submitted to a specific questionnaire and had a blood sample tested for the serologic markers HBsAg, total anti-HBcAg, anti-HBsAg and anti-HCV, using ELISA technique. The overall prevalence of hepatitis B markers was 40.9%, with 8.5% for HBsAg, 39.7% for total anti-HBcAg and 5.5% for anti-HBsAg. The variables that showed association with HBV were: age, higher education level, history of jaundice, time spent in prison, having a homosexual partner and positive markers for anti-HCV. Co-infection HBV/HCV was present in 20.4% of the participants.
Related Concept Videos
Hepatitis
Viral Hepatitis I: Introduction
Factors Affecting the Risk of Infection
The integrity and count of the white blood cells help the body resist pathogens and fight infection. When impaired, it reduces the body's resistance to pathogens. The acidic pH levels of the gastrointestinal, genitourinary tracts, and skin create...
Amebiasis
Sexually Transmitted Infections
Retrovirus Life Cycles
