Communicable disease threats report, 22 - 28 November 2025, week 48

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 22 -28 November 2025 and includes updates on respiratory virus epidemiology in the EU/EEA, chikungunya, West Nile virus, Marburg virus disease, influenza A, cholera, swine influenza, wild poliovirus, hepatitis A, and Ebola.