Communicable disease threats report, 21-27 June 2025, week 26

The ECDC Communicable Disease Threats Report (CDTR) is a weekly bulletin for epidemiologists and health professionals on active public health threats. This issue of the CDTR covers the period 21-27 June 2025 and includes updates on respiratory virus epidemiology in the EU/EEA, influenza A(H5N1), avian influenza (A(H10N3); A(H9N2)), mass gathering monitoring (EuroPride 2025), autochthonous chikungunya virus disease, Crimean-Congo haemorrhagic fever, West Nile virus infection, and poliomyelitis.