Disclaimer: The information presented in the ECDC Vaccine Tracker is based on data reported by EU/EEA countries to the European Surveillance System (TESSy). EU/EEA countries may upload data at any time, but as a minimum they are requested to report twice a week (on Tuesdays for the previous week and Thursdays for the current week). The data in the tracker are refreshed at 11h, Monday to Friday. Considering this reporting timeframe and the time ECDC needs to process the data, some discrepancies may be observed between the figures published by ECDC and the ones presented in official national reports or web sites. Users are advised to use all data with caution and be aware of their limitations. Data for the current week are preliminary, as countries are uploading and updating their data. All data are subject to retrospective corrections; corrected datasets are released as soon as processing of updated national data has been completed. Please refer to the “Notes on the data” tab for additional information.