Extended Data Fig. 2: Neutralization titers reported in vaccinated and convalescent individuals over time.

The decay half-lives for convalescent and vaccinated individuals were estimated using a linear mixed effects model with censoring of neutralization titers below the limit of detection (dashed lines). a, The decay half-lives were not significantly different between vaccinated³⁴ and convalescent³ individuals (P=0.88, likelihood ratio test). b, The decay half-life in convalescent individuals out to approximately 240 days was estimated using data from Dan et al.⁵.