When I had my flu jab last week I enquired about the 3rd dose/booster though the receptionist wasn’t aware of any differences, however a lady in front of me had just cancelled her booster slot so I managed to get that booked in for the next day after the flu jab in the same arm.
When I saw the jabber I showed him the blood cancer and MPN voice letters he said it was the first he had heard of it and my disease of ET. So I asked if this the full dose of Pfizer and he said yes.
However looking on patient access I have had a 0.3 dose compared to two 0.5 of AZ
COVID-19 mRNA Vaccine Pfizer-BioNTech BNT162b2 30micrograms/0.3ml dose concentrate for suspension for injection multidose vials (Pfizer Ltd)
This may explain why I had more side effects from the flu jab than the Pfizer apart from a sore arm I have felt fine.
To me this looks like I’ve had a booster and not the so called 3rd primary dose, though if anyone can add some light that would be much appreciated.