Extended Data Fig. 3: Population selection process for investigating the BNT162b2 and mRNA-1273 vaccines effectiveness.
From: BNT162b2 and mRNA-1273 COVID-19 vaccine effectiveness against the SARS-CoV-2 Delta variant in Qatar

Flowchart describing the population selection process for investigating the BNT162b2 and mRNA-1273 vaccines effectiveness against infection with the SARS-CoV-2 Delta variant.