This issue of the ECDC Communicable Disease Threats Report (CDTR) covers the period 14-22 May 2026, and includes updates on hantavirus, chikungunya, Ebola disease outbreak, avian influenza, measles, and an overview of respiratory virus epidemiology in the EU/EEA.

ECDC was notified on 2 May 2026 of a cluster of severe respiratory illness on MV Hondius, a Dutch-flagged cruise ship with passengers and crew from 23 countries, including nine EU/EEA countries. The virus has been identified as Andes hantavirus.

On 17 May 2026, the World Health Organization (WHO) declared the Ebola virus disease outbreak caused by Bundibugyo virus in the Democratic Republic of the Congo (DRC) and Uganda a Public Health Emergency of International Concern.

Since 2023, 14 countries have reported more than 2 300 infections caused by multidrug-resistant (MDR) or extensively drug-resistant (XDR) Shigella sonnei and Shigella flexneri to ECDC. Seven genetically distinct MDR/XDR clusters, some with prolonged circulation and others more recent, have been reported.

This issue of the ECDC Communicable Disease Threats Report (CDTR) covers the period 9-13 May 2026, and includes updates on avian influenza, human cases of swine influenza, mpox, and hantavirus.

This issue of the ECDC Communicable Disease Threats Report (CDTR) covers the period 2-8 May 2026, and includes updates on hantavirus, mpox, Middle East respiratory syndrome coronavirus (MERS-CoV), Salmonella Stanley, and an overview of respiratory virus epidemiology in the EU/EEA.

This issue of the ECDC Communicable Disease Threats Report (CDTR) covers the period 25-30 April 2026, and includes updates on influenza, cholera, chikungunya virus disease, and an overview of respiratory virus epidemiology in the EU/EEA.

This issue of the ECDC Communicable Disease Threats Report (CDTR) covers the period 18-24 April 2026, and includes updates on avian influenza, Salmonella Bovismorbificans, and an overview of respiratory virus epidemiology in the EU/EEA.

This issue of the ECDC Communicable Disease Threats Report (CDTR) covers the period 12-18 April 2026, and includes updates on respiratory virus epidemiology in the EU/EEA, measles, zika, and chikungunya.

This issue of the ECDC Communicable Disease Threats Report (CDTR) covers the period 4-10 April 2026, and includes updates on avian influenza, dengue, and an overview of respiratory virus epidemiology in the EU/EEA.

This issue of the ECDC Communicable Disease Threats Report (CDTR) covers the period 28 March-3 April 2026 and includes updates on SARS-CoV-2 variant classification, Middle East respiratory syndrome coronavirus (MERS-CoV), cholera, HIV, and avian influenza.

This issue of the ECDC Communicable Disease Threats Report (CDTR) covers the period 21–27 March 2026 and includes updates on respiratory virus epidemiology in the EU/EEA, chikungunya, dengue, avian influenza, invasive meningococcal disease, aedes aegypti detection in Luxembourg, and measles.

This issue of the ECDC Communicable Disease Threats Report (CDTR) covers the period 14 -20 March 2026 and includes updates on respiratory virus epidemiology in the EU/EEA, mass gathering monitoring, avian influenza, dengue, serious adverse events to IXCHIQ chikungunya virus disease vaccine, and invasive meningococcal disease.

As of March 2026, over 1 000 confirmed and possible cases of shigellosis and other gastrointestinal infections, including salmonellosis, have been detected in travellers returning from Cabo Verde to several countries in the European Union/European Economic Area (EU/EEA), the United Kingdom (UK), and the United States (US), with new cases still being reported.

This issue of the ECDC Communicable Disease Threats Report (CDTR) covers the period 7-13 March 2026 and includes updates on respiratory virus epidemiology in the EU/EEA, measles, chikungunya, mass gathering monitoring, and mpox.

This issue of the ECDC Communicable Disease Threats Report (CDTR) covers the period 28 February–6 March 2026 and includes updates on respiratory virus epidemiology in the EU/EEA, Sars-CoV-2 variant classification, MERS, mass gathering monitoring, and chikungunya.

This issue of the ECDC Communicable Disease Threats Report (CDTR) covers the period 21 - 27 February 2026 and includes updates on respiratory virus epidemiology in the EU/EEA, mass gathering monitoring, chikungunya, cholera, and swine flu.

This issue of the ECDC Communicable Disease Threats Report (CDTR) covers the period 7 - 13 February 2026 and includes updates on respiratory virus epidemiology in the EU/EEA, mass gathering monitoring, avian influenza, and mpox.

This issue of the ECDC Communicable Disease Threats Report (CDTR) covers the period 7 - 13 February 2026 and includes updates on respiratory virus epidemiology in the EU/EEA, mass gathering monitoring, avian influenza, chikungunya, dengue, Nipah virus disease, and measles.

This issue of the ECDC Communicable Disease Threats Report (CDTR) covers the period 31 January - 6 February 2026 and includes updates on respiratory virus epidemiology in the EU/EEA, SARS-CoV-2 variant classification, Bacillus cereus toxin in infant formula, mass gathering monitoring, mpox, nipah virus, and Middle East respiratory virus syndrome.