I’m sure someone else has noticed this but, on all the weekly reports on the covid vaccine, there are first date of reaction dates years apart from when they were actually rolled out..
Moderna 1st reaction date - 15 Oct 1958
Oxford AZ 1st reaction date - 3rd Feb 1921
Pfizer 1st reaction date - 13 April 1968
Over on VigiAccess*
vigiaccess.org
They’re reporting ADRs stretching back to 2017
2019 13
2018 5
2017 1
* tick box at bottom of page to enter. Type in “Covid-19 vaccine” in the search bar, and it’s the last section, “ADR reports per year”.
Rather odd to have ADRs recorded in a vaccine that shouldn’t have been in existence prior to late 2019?
That looks like the first data that particular symptom was reported (via you'd expect the old paper based systems).
Those aren't specific to the vaccine itself.