“My data:
2021-05-21: 1st dose of Comirnaty (BioNTech/Pfizer)
2021-06-13: 2nd dose of Comirnaty (BioNTech/Pfizer)
2021-06-23: 5854.4 BAU/ml
2021-09-30: 1098.1 BAU/ml
2021-11-15: 3rd dose of Comirnaty (BioNTech/Pfizer)
2021-12-22: 4949.7 BAU/ml
After the 3rd dose of Comirnaty I experienced a quite inconvenient repeating vertigo that began in the night after I got vaccinated and was lasting for more than 2 weeks. Might be related to fluctuating blood pressure. Therefore I chose Nuvaxovid for my 4th dose.
2022-08-30: 1st dose of Nuvaxovid (Novavax)
2022-10-07: 12554.0 BAU/ml
The day after Nuvaxovid I had a slightly higher temperature (37.05 °C), but no fever. My deltoid muscle was swollen for several days, like it was after the 2nd and the 3rd dose of Comirnaty. Besides that, some bilirubin showed up on the skin at my shoulder, like after a bruise (local haemolysis because of the saponins?). The bilirubin lasted about one week. This time I experienced no vertigo at all.
I was frankly surprised that the antibody count after Nuvaxovid was so much higher than after the 3rd dose of Comirnaty.
In order to get Nuvaxovid, I had to convince a doctor, who told me that this combination was off label in Europe and that she doesn't know any research on Nuvaxovid after Comirnaty (I did, but I didn't tell her), so she thougt that this combination would never get the necessary authorization. Luckily, I was able to convince her, but I had to sign her form even twice. A couple of days after she gave me my Nuvaxovid, the EMA authorized it as a heterologous booster. :D”
