Table of Contents
1. Hepatitis A 31
Sven Pischkeand Heiner Wedemeyer
The virus 31
Epidemiology 31
Transmission 32
Clinical course 33
Extrahepatie manifestations 35
Diagnosis 35
Treatment and prognosis 36
References 37
2. Hepatitis B 39
Raphael Mohr, Christoph Boesecke and Jan-Christian Wasmuth Introduction 39
Transmission 40
Sexual transmission 40
Percutaneous inoculation 41
Perinatal transmission 41
Horizontal transmission 42
Blood transfusion 43
Nosocomial infection 43
Organ transplantation 44
Postexposure prophylaxis 45
Natural history and clinical manifestations 45
Acute hepatitis 45
Chronic hepatitis 47
Prognosis and survival 49
Extrahepatie manifestations 51
References 51
3. Hepatitis C 55
Christoph Boesecke and fan- Christian Wasmuth
Epidemiology 55
Transmission - 56
. Injection drug use 56
Blood transfusion 56
Organ transplantation 57
Sexual or household contact 57
« Perinatal transmission 58
Hemodialysis 58
Other rare transmission routes 59
Needle stick injury 59
Clinical manifestations 59
Acute HCV 59
Chronic HCV 5o
Extrahepatic manifestations 61
Natural history 62
Cirrhosis and hepatic decompensation 62
Disease progression 63
References 56
4- Hepatitis E: a relevant disease with many aspects 69
Sven Pischkc and Heiner Wedcmcyer
Introduction 69
Genetic characteristics of HEV 7o
Hepatitis E diagnosis jj
Global distribution of HEV infections 72
Transmission of HEV 7^
Acute HEV in immunocompetent individuals 75
Acute and chronic HEV in organ transplant recipients 75.
HEV in patients living with HIV or other immunological deficiencies 77 Extrahepatic manifestations of HEV 77
Treatment of chronic HEV 78
Vaccination jg
Conclusions and recommendations go
References . 8l
§. HBV virology
Maura Dandri, Jorg Petersen Introduction
Taxonomic classification and genotypes 86
HBV structure and genomic organisation 86
HBV structural and non-structural proteins 89
The HBV replication cycle 92
Animal models of HBV infection 99
References I02 6
6. HCV virology
Bernd Kupfer
History ioj
Taxonomy and genotypes
Viral structure
Genome organisation Genes and proteins 112
Viral life cycle 117
Adsorption and viral entry n7
Translation and post-translational processes 120
HCV RNA replication 121
Assembly and release 122
Model systems for HCV research I23
References I2^
f. Prophylaxis and vaccination *33
Heiner Wedemtyer
Introduction *33
Prophylaxis of hepatitis viruses *33
Hepatitis A and E *33
Hepatitis B and D *34
Hepatitis C r35
Vaccination against HAV *37
Vaccination against HBV *38
Efficacy of vaccination against HBV 140
Post-exposure prophylaxis J4o
Safety of HBV vaccines *40
Long-term immunogenicity of HBV vaccination 141
Prevention of vertical HBV transmission 141
Vaccination against HCV M2
Vaccination against HEV M4
References *45
8* Hepatitis B: diagnostic tests *49
Jdrq Petersen
Introduction I49
Serological tests for HBV l49
Collection and transport *49
Hepatitis B surface antigen and antibody GO
Hepatitis B core antibody I5I
Hepatitis В e antigen and antibody J52
Serum HBV DNA assays *53
HBV genotypes G3
Antiviral resistance testing G4
Future markers that are not yet in clinical practice 154
Assessment of liver disease *55
Acute HBV infection *56
Past HBV infection *5^