Hepatitis is an inflammation of the liver. It is mainly caused by viral infection. The four most common hepatitis viruses are hepatitis A, B, C and E. In addition, there is hepatitis D, which is rarer.
Other causes of hepatitis include bacterial infection, liver injury caused by a toxin and certain medical conditions.
Documenting the impact of hepatitis B immunization: Best practices for conducting a serosurvey
The global prevalence of hepatitis E virus and susceptibility: A systematic review
The global prevalence of hepatitis A virus infection and susceptibility: A systematic review
WHO position papers on vaccines, including hepatitis
Immunological basis for immunization series, including hepatitis vaccines
WHO prequalified hepatitis vaccine
The Strategic Advisory Group of Experts (SAGE) on Immunization
International Health Regulations
Surveillance, forecasting and response
