The UK used 12 weeks for both products until recently when they cut to 8 because of Delta.DealsinThe6ix wrote: ↑ Thanks for the link!
But I think England is using the recommended interval of 21 days for Pfizer and 4weeks to 8weeks for Astrazeneca, and these numbers are for vaccine effectivness against hospitalization.
What about after vaccine effectiveness against symptomatic disease after 8weeks or more after 1st dose, which is what Canada is doing, at least for mRNA vaccines?
We know after 1 dose for Pfizer, it's 33% effectiveness against symptomatic disease for delta variant, and 2nd dose 21 days after 1st dose, effectiveness is 88%, but this is not the reality in Canada. The reality is 8weeks or more after 1st dose.
I think we all need clarity for mRNA effectiveness against symptomatic disease 8 weeks or more after 1st dose against this delta variant.
They have published 12 week data and antibody response.
Here is Quebec's 16 week data if you can read french:
https://mobile.inspq.qc.ca/publications ... eurs-sante