Since the beginning of the 2023 transmission season and as of 29 November 2023, EU/EEA countries have reported 707 human cases, 147 outbreaks among equids and 246 outbreaks among birds.
This issue of the ECDC Communicable Disease Threats Report (CDTR) covers the period 19 - 25 November 2023 and includes updates on updates SARS-CoV-2 variant classifications, the increase of pediatric respiratory infections in China, Avian influenza in fur farms, West Nile virus, cholera, and an overview of respiratory virus epidemiology.
Since the beginning of the 2023 transmission season and as of 22 November 2023, EU/EEA countries have reported 698 human cases of WNV infection. In the same period, 146 outbreaks among equids and 246 outbreaks among birds have been reported by EU/EEA countries.
A joint study of the National Public Health Organization in Greece (NPHO) and the European Centre for Disease Prevention and Control (ECDC) conducted in 15 Greek hospitals in 2022 sheds light on the rapid spread of carbapenemase-producing, highly drug-resistant Klebsiella pneumoniae sequence type (ST) 39, following its initial documentation in a European-wide genomic survey in 2019.
The main aim of the genomic study described in this surveillance report was to determine the distribution of the highly drug-resistant clade of Klebsiella pneumoniae (sequence type (ST) 39 in Greek hospitals in 2022.