On a positive note both me and wife just have 3. booster injection (me late last night - wife early this morning). We will now live 'forever' or close :)
About vaccination - it has gone completely mad here in DK and in UK and Germany. In all 3 countries the plan is to vaccinate with 3. injection - all the way down to age 40 - before New Years.
This means that millions - are vaccinated every day in thousands of locations - that runs almost round the clock.
You have to impressed with Pfizer and Moderna - the capacity of production of these vaccines as an industrial process - whether you support vaccination or not.