Table 1 Contrasting, on the one hand, the SARS-CoV-2 variant exposure status as defined based on time periods with known variant circulation with, on the other hand, the SARS-CoV-2 variant exposure status as defined through linkage with Whole Genome Sequencing (WGS) and presumptive genotyping results in the COVID-19 TestResult database

From: Evaluating methodological approaches to assess the severity of infection with SARS-CoV-2 variants: scoping review and applications on Belgian COVID-19 data