In 2023, 216 cases of diphtheria due to toxigenic Corynebacterium diphtheriae (n=155) or C. ulcerans (n=61) were reported to ECDC. The increase of diphtheria among migrants reported in several EU/EEA countries in the second half of 2022 decreased to lower levels in 2023.
This issue of the ECDC Communicable Disease Threats Report (CDTR) covers the period 17-23 January 2026 and includes updates on respiratory virus epidemiology in the EU/EEA, avian influenza, and Marburg virus disease.
Respiratory virus circulation is elevated across the EU/EEA: circulation of influenza viruses is high, but has peaked; RSV circulation is elevated and increasing, and SARS-CoV-2 circulation remains at low levels.
This initiative aims to enhance regional cooperation to tackle cross-border health security threats in EU candidate and potential candidates countries and European Neighbourhood Policy partner countries.
The survey of carbapenem-resistant Enterobacterales 2025 (CRE25 survey) is the third genomic survey of CRE following the European survey of carbapenemase-producing Enterobacteriaceae (EuSCAPE) in 2013−2014 and the survey of carbapenem- and/or colistin-resistant Enterobacterales (CCRE survey) in 2019.
