Communicable disease threats report, 27 September - 3 October 2025, week 40

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 27 September - 3 October 2025 and includes updates on respiratory viruses, SARS-CoV-2, Mpox, rabies, West Nile virus infection, dengue, chikungunya, Crimean-Congo haemorrhagic fever and Ebola.