This issue of the ECDC Communicable Disease Threats Report (CDTR) covers the period 17-23 December 2023 and includes updates on cholera, SARS-CoV-2 variant classification, avian influenza in fur farms, hepatitis A, pertussis, a cluster of extensively drug-resistant Shigella Sonnei among men who have sex with men, and an overview of respiratory virus epidemiology in the EU/EE.
This report provides updated baseline data for monitoring future changes in the distribution of autochthonous Crimean-Congo haemorrhagic fever and its associated vectors for Europe and its neighbouring areas.
Varicella is caused by the varicella-zoster virus (VZV), which also causes shingles (herpes zoster). The virus typically affects children aged 2‒8 years.