Quote:
Originally Posted by ford71V8
I was under the impression that while 3-6 week gap for Pfizer shots is correct, the efficacy is better at 6 than 3.
And any time longer than 6 is pointless.
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Almost. Certainly efficacy is better at 6 weeks than 3 but some research in the UK has indicated that 8 weeks provided better and longer protection.
The best guide for how much the reduction for Pfizer is suggests that the difference between 3 weeks and 6 weeks is only a couple of percentage points and maximum protection (~96%) is 14 days after the 2nd shot.
However, we do know that AZ is significantly less effective when the second dose is taken at 6 (60%) rather than 12 (81%) weeks and then 66% and 86% 14 days after that 2nd shot. It's why I'm waiting the full 12 weeks even if that does mean I'm waiting until the 3rd week of November.