Extended Data Fig. 1: Flowchart of participants included in the Delta-wave subgroup analysis.
From: SARS-CoV-2 correlates of protection from infection against variants of concern
Grey boxes represent participants excluded from the Delta-wave subgroup analysis. *Based on a previously published study31. †Household with more than 6 infected individuals would be computationally intractable to track all possible transmission chain configurations (Methods Section 3).
