Extended Data Fig. 4: Effectiveness of previous infection in preventing reinfection by vaccination status.
From: Differential protection against SARS-CoV-2 reinfection pre- and post-Omicron
Effectiveness of infection in preventing reinfection by time since prior infection by vaccination status in the a) pre-omicron era and b) omicron era. a includes 353,485 and 627,836 independent samples for unvaccinated cases and controls, respectively, and 30,746 and 56,421 independent samples for vaccinated cases and controls, respectively. b includes 93,830 and 157,697 independent samples for unvaccinated cases and controls, respectively, and 176,161 and 275,258 independent samples for vaccinated cases and controls, respectively. Data are presented as effectiveness point estimates and corresponding 95% confidence intervals. Error bars indicate the 95% confidence intervals. Measures were not adjusted for multiplicity.
