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 6 - 12 August 2023 and includes updates on measles, COVID-19, swine flu, mpox, diphtheria, West Nile virus, avian influenza, dengue, Crimean-Congo haemorrhagic fever, and invasive meningococcal disease.