Funding statement
KRS received fellowship funding by the European Public Health
Microbiology Training Programme (EUPHEM), European Centre for Disease
Prevention and Control (ECDC). An ECDC representative formally approved
the manuscript before submission. MPGK received funding from the H2020
COVID-19 project RECOVER (grant agreement nr 101003589). The funders had
no role in the collection, analysis, and interpretation of data, nor the
writing of the review.