"Sterilizing immunity is not induced by any of the vaccines so the fact that infection still occurs is not surprising but the immunity that is generated, which includes the non-neutralizing antibodies and T-cells that are less tested for, ensures that disease is minimised."

- #ProfIanJones, Professor of Virology, University of Reading

https://www.scoop.co.nz/stories/GE2108/S00179/waning-immunity-to-covid-19-expert-reaction.htm