The ECDC Communicable Disease Threats Report (CDTR) is a weekly bulletin for epidemiologists and health professionals on active public health threats. This issue covers the period 18-24 December 2022 and includes updates on chikungunya, cholera, COVID-19, dengue, C. diphtheriae, Ebola, influenza A(H5N1), Influenza A(H9N2), mass gathering monitoring, Mpox, swine influenza.