Communicable disease threats report, 29 October - 4 November 2023, week 44

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 29 October - 4 November 2023 and includes updates on West Nile virus, the mass gatherings at the Rugby World Cup 2023 and the detection of Crimean-Congo haemorrhagic fever virus in ticks in southern France.