Project title
The data of the study were originally collected as part of the project ‘Developing an infrastructure and performing vaccine effectiveness studies for COVID-19 vaccine in the EU/EEA’ (Contract ECD.11486 Lot3 (HCW) and amendment Nº ECD.11486), and the Enhanced laboratory support to perform assessment of vaccine effectiveness against SARS-CoV- 2 infection (ECD.12175) and the ‘Vaccine Effectiveness, Burden and Impact Studies (VEBIS) of COVID-19 and Influenza’, funded by the European Centre for Disease Prevention and Control through a service contract with Epiconcept (ECD.12609).