During the 2023 West Nile virus transmission season, and as of 4 January 2024, 709 locally acquired human cases of West Nile virus infection, including 67 deaths, were reported by nine European Union countries.
Since the most recent ECDC rapid risk assessment in 2021, the number of EU/EEA countries reporting hypervirulent Klebsiella pneumoniae (hvKp) sequence type (ST) 23 has increased from four to ten and the number of cases reported to ECDC by the countries, increased from 12 to 143.
The food-borne infections listeriosis and shigatoxigenic Escherichia coli are increasing in the EU/EEA and were in 2022 at levels higher than before the COVID-19 pandemic.
The European Respiratory Diseases Forecasting Hub (RespiCast) is open for weekly submission of several respiratory disease indicators such as influenza-like-illness, acute respiratory infection and COVID-19.
Several viral and bacterial respiratory pathogens are expected to continue co-circulating at variable levels during the coming months, and contribute to increased morbidity and mortality during this period. This is typical of every winter season.
To assess the level of preparedness of EU/EEA Member States to respond to zoonotic avian flu outbreaks, ECDC has carried out two surveys - one assessing the laboratory capacity for molecular diagnosis and characterisation of zoonotic influenza viruses, and the other focusing on measures applied to protect exposed people during outbreaks of highly pathogenic avian influenza.
Campylobacteriosis and salmonellosis were the most frequently reported zoonotic diseases in humans in the EU in 2022. For West Nile virus, an increase of the number of infections was observed.
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.
ECDC and World Health Organization (WHO) Regional Office for Europe have jointly developed the European Respiratory Virus Surveillance Summary (ERVISS), an interactive surveillance data dashboard for influenza, respiratory syncytial virus (RSV), and severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) that also features a weekly epidemiological summary.