I'm surprised it's being reported as high as that. There seem to be a lot of reports around - on here for example, or in the media - of all the various people that have had one dose of Pfizer and have seen contracted Covid several weeks later (i.e., after it's had time to take effect). I wonder whether we are just seeing those very rare cases being the ones that are reporting it, or whether real world efficiency is different here, or if those were all in HCP who had much greater potential exposure than the people in the study, or what.
Still good news though. Hopefully more doses will be available soon, and Moderna too. And the boosters sound quite straightforward to do for the AZ ones, so those might be quick off the mark with adjustments for the variants