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.
This issue of the ECDC Communicable Disease Threats Report (CDTR) covers the period 18-24 June 2023 and includes updates on swine influenza, COVID-19, West Nile virus, mass gatherings and gonorrhoea.
In 2019, a total of 117 881 confirmed cases of gonorrhoea were reported by 28 EU/EEA Member States. The overall crude notification rate was 31.6 cases per 100 000 population.