Communicable disease threats report, 23-29 August 2025, week 35

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 23-29 August 2025 and includes updates on rabies, chikungunya virus disease, Crimean-Congo haemorrhagic fever, dengue, West Nile virus infection and the expert deployment to support the national response to the mpox clade IIb outbreak in Sierra Leone.