Oxford/AZ vaccine effectiveness against symptomatic infection

With Delta and Omicron, by weeks after administration of:
dose two of the Oxford vaccine   a Pfizer booster  

Shaded areas show 95% confidence intervals
Chart: The Spectator (7ApJD) Source: Figure 6 from UKHSA Covid-19 vaccine surveillance report, Week 1 (6 Jan 2022) Get the data