Legionnaires' disease has shown a significant surge within the European Union/European Economic Area (EU/EEA) in 2021, with over 10 700 cases reported and 704 known fatalities.
This issue of the ECDC Communicable Disease Threats Report (CDTR) covers the period 25 June - 1 July 2023, and includes updates on avian influenza, COVID-19, West Nile virus, poliomyelitis, cholera, fungal meningitis, Oz virus, and information on mass gatherings (the Hajj).