This document is an update of the joint guidance that was published in 2011 by the European Centre for Disease Prevention and Control (ECDC) and the European Monitoring Centre for Drugs and Drug Addiction (EMCDDA).
This issue of the ECDC Communicable Disease Threats Report (CDTR) covers the period 10-16 September 2023 and includes updates on COVID-19, diphtheria, West Nile virus, avian influenza, dengue, legionnaires' disease, the Rugby World Cup 2023, cutaneous Anthrax, pertussis, botulism and severe floods.
Prevalence data from sources such as population surveys can be a useful complement to case based surveillance data for hepatitis C. 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 C.
Anthrax continues to be uncommon in humans in the EU/EEA, with only a few cases reported every year. For 2021, four confirmed anthrax cases were reported by Bulgaria (one case) and Spain (three cases). Among 30 reporting EU/EEA countries, 27 notified zero cases.
In 2021, 14 560 cases of hepatitis C were reported in 29 EU/EEA Member States. Excluding countries that only reported acute cases the number of cases (14 550 cases) corresponds to a crude rate of 4.1 cases per 100 000 population.
For 2021, 6 534 confirmed cases of STEC infection were reported by 30 EU/EEA countries (Table 1). Twenty-seven countries reported at least two confirmed cases, and three countries reported no cases. The EU/EEA notification rate was 2.2 cases per 100 000 population, representing a 37.5% increase compared with the previous year.
Hepatitis A cases in 2021 were at their lowest levels since EU-level hepatitis A surveillance began in 2007, while five other food and waterborne diseases are rising towards pre-pandemic levels. The information is revealed in the Annual Epidemiological Report 2021, of which six chapters are published today by ECDC.