Re:FDA Approves First Covid-19 Vaccine
by handoflixue on Monday August 23, 2021 @01:11PM
(#28278966)
Worth noting that Moderna seems to have a much stronger and different side-effect profile, especially on the second shot. Might explain the difference you're seeing.
Counter-anecdata: everyone I know (in the UK[1]) had a much milder reaction to the second than the first - first one knocked most people out for a day or two; second one was half a day in the worst cases, couple of hours in the main.
[1] Which means AZ or J&J, I think, not Moderna. But it's anecdata, it's never going to be 100% helpful.