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Related Concept Videos

Vaccinations01:51

Vaccinations

Overview
Healthcare Associated Infections II: Preventive Measures01:22

Healthcare Associated Infections II: Preventive Measures

Essential infection prevention measures are based on the knowledge of the infection chain, the modes of transmission in healthcare settings, and the use of the best practices in all healthcare settings. Compulsory public reporting of healthcare-associated infection rates is needed to allow individuals and the community to make informed choices regarding selecting a healthcare facility.
The best practices for preventing healthcare-associated infections include hand hygiene, patient risk...
Development of Immunocompetence01:22

Development of Immunocompetence

The initiation of cell-mediated immunity can be observed as early as the third month of fetal growth, with active antibody-mediated immunity following approximately one month later.
The initial cells that migrate from the fetal thymus settle within the skin and epithelial tissues lining the mouth, digestive tract, and in females, the uterus and vagina. These cells, including skin-based dendritic cells, serve as antigen-presenting cells, playing a key role in T cell activation.
Subsequent T...
Smallpox01:24

Smallpox

Smallpox is a severe contagious disease caused by the Variola major virus, a double-stranded DNA member of the Poxviridae family.Variola major transmission occurs primarily via inhalation of virus-laden droplets or direct contact with infectious scabs. The incubation period averages approximately seven days, although it may range from 7 to 17 days depending on the inoculum and host factors.Clinically, the prodromal phase is marked by an abrupt onset of high fever, malaise, headache, and myalgia.
Hepatitis01:25

Hepatitis

Hepatitis is an inflammatory condition of the liver most commonly caused by hepatotropic viruses (A–E), though non-infectious causes such as alcohol and drugs also exist.Hepatitis AHepatitis A virus (HAV) is a non-enveloped RNA virus of the Picornaviridae family. It is primarily transmitted via the fecal-oral route, typically through ingestion of contaminated food or water. After ingestion, HAV enters the bloodstream through the oropharynx or intestinal epithelium and reaches the liver. The...
Viral Hepatitis I: Introduction01:28

Viral Hepatitis I: Introduction

Viral hepatitis is an inflammatory condition of the liver caused by infection with hepatotropic viruses, most commonly hepatitis A, B, C, D, and E. Despite variations in structure and transmission, all viruses mentioned infect hepatocytes and provoke immune responses that can hinder liver function. Additionally, some non-hepatotropic viruses can also lead to hepatic inflammation.Hepatitis A VirusHepatitis A virus (HAV) is transmitted through the fecal–oral route, typically by ingestion of food...

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Related Experiment Video

Updated: Jun 23, 2026

Development of a Hepatitis B Virus Reporter System to Monitor the Early Stages of the Replication Cycle
09:35

Development of a Hepatitis B Virus Reporter System to Monitor the Early Stages of the Replication Cycle

Published on: February 1, 2017

Developing new hepatitis B immunisation strategies

A J Zuckerman1

  • 1Royal Free Hospital School of Medicine, London.

Gut
|January 1, 1996
PubMed
Summary
This summary is machine-generated.

Universal infant immunization is the most effective strategy for hepatitis B prevention. This approach ensures broad protection and is well-accepted by parents, offering a robust public health solution.

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Stem Cell-Derived Viral Ag-Specific T Lymphocytes Suppress HBV Replication in Mice
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Analysis of HBV-Specific CD4 T-cell Responses and Identification of HLA-DR-Restricted CD4 T-Cell Epitopes Based on a Peptide Matrix

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Related Experiment Videos

Last Updated: Jun 23, 2026

Development of a Hepatitis B Virus Reporter System to Monitor the Early Stages of the Replication Cycle
09:35

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Published on: February 1, 2017

Stem Cell-Derived Viral Ag-Specific T Lymphocytes Suppress HBV Replication in Mice
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Stem Cell-Derived Viral Ag-Specific T Lymphocytes Suppress HBV Replication in Mice

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Analysis of HBV-Specific CD4 T-cell Responses and Identification of HLA-DR-Restricted CD4 T-Cell Epitopes Based on a Peptide Matrix
10:37

Analysis of HBV-Specific CD4 T-cell Responses and Identification of HLA-DR-Restricted CD4 T-Cell Epitopes Based on a Peptide Matrix

Published on: October 20, 2021

Area of Science:

  • Hepatitis B prevention strategies
  • Vaccine efficacy and development
  • Public health immunology

Background:

  • Hepatitis B poses a significant global health challenge.
  • Various immunization strategies exist, including targeting high-risk infants, adolescents, and universal infant or general population vaccination.
  • Antenatal screening can identify carrier mothers for timely infant immunization.

Purpose of the Study:

  • To evaluate and compare different immunization approaches for hepatitis B.
  • To identify the most effective and acceptable strategy for widespread hepatitis B prevention.
  • To discuss the implications of vaccine escape mutants on hepatitis B control.

Main Methods:

  • Review and comparison of existing hepatitis B immunization strategies.
  • Assessment of delivery mechanisms and parental acceptance for different vaccination schedules.
  • Consideration of vaccine development, including combination vaccines and potential challenges like antibody escape mutants.

Main Results:

  • Universal infant immunization is identified as the optimal strategy due to established delivery methods and parental acceptance.
  • Adolescent immunization offers protection near increased risk periods and can be integrated with health education.
  • Antenatal screening facilitates targeted infant immunization of those born to carrier mothers.

Conclusions:

  • Universal infant immunization is the preferred method for hepatitis B control.
  • Development of combined vaccines (e.g., hepatitis B-diphtheria-pertussis-tetanus) is advantageous.
  • Emerging hepatitis B virus (HBV) antibody escape mutants pose a concern for long-term vaccine efficacy.