Communicable disease threats report, 21 – 27 March 2026, Week 13

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 ECDC Communicable Disease Threats Report (CDTR) covers the period 14-20 March 2026 and includes updates on respiratory virus epidemiology in the EU/EEA, chikungunya, dengue, avian influenza, invasive meningococcal disease, and aedes aegypti detection in Luxembourg, and measles.