Surveillance of antimicrobial resistance in Europe, 2021 data

Surveillance report

The results presented in this executive summary are based on antimicrobial resistance (AMR) data from invasive isolates reported to the Central Asian and European Surveillance of Antimicrobial Resistance (CAESAR) network and the European Antimicrobial Resistance Surveillance Network (EARS-Net) in 2022 (data referring to 2021).

Executive summary

In total, 16 countries reported data to CAESAR, while 29 countries, including all of those in the European Union (EU) and two from the European Economic Area (EEA) (Iceland and Norway), reported data to EARS-Net. While the EARS-Net and CAESAR networks use comparable methods for data collection and analysis, the results presented in this executive summary originate from distinct country surveillance systems. As these inherently are influenced by specific protocols and practices, caution is advised when comparing countries in terms of AMR patterns.