Prevalence data from sources such as population surveys can be a useful complement to case based surveillance data for hepatitis B. Case-based surveillance has limitations as most diagnosed cases are chronic in nature and detection of cases depends largely on testing practices. Prevalence data can therefore contribute towards a fuller understanding of the epidemiology of hepatitis B.
The seroincidence calculator utilises the combination of serum antibody levels (lgG, lgM, and lgA) at a given point in time to estimate the time since seroconversion, which in turn gives an estimate of annual 'force of infection' in the tested population.
The directory lists strategies, guidance documents, training courses and research projects on the prevention and control of antimicrobial resistance and healthcare-associated infections available online.