• but it will take 12 days to even start doing anything, a few weeks after that it should typically be 52% effective.

    The 52% often quoted includes the early period when it does nothing. The effectiveness after 15 days is estimated at 89%.

    They also reckon the Oxford vaccine is 73% effective 22 days after one dose.

  • Ah yeah sorry, so that gov.uk you linked to actually says effectiveness between 15 and 21 days is 89% and the 52% is efficacy between dose 1 and 2 - short-term protection from the first dose is 'very high from day 10'.

    Still won't be able to go round for a cuppa for a bit though I think.

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