>>13499835That's why people should have gotten a Viral Vector vaccine instead of the MRNA vaccines
https://www.ft.com/content/4492746e-6a14-4993-9c21-cd9c9f37eca4 The Oxford/AstraZeneca vaccine induced a stronger cellular immune response in elderly adults than the BioNTech/Pfizer shot, potentially providing more protection against severe Covid-19 and new virus variants.
In the first head-to-head comparison of the two vaccines, scientists discovered that both shots elicited an antibody response in the group of over-80s, tested five to six weeks after the first shot. However, participants who received the AstraZeneca jab were more likely to also have a T-cell response.
Vaccines teach the immune system — which includes both antibodies and T-cells — to recognise part of the Sars-Cov-2 virus. The antibody response of different vaccines has already been studied, but so far less data has been gathered on the T-cell response because it is harder to measure.
In the new study by UK Coronavirus Immunology Consortium and the University of Birmingham, T-cell responses were reported in 31 per cent of recipients of the AstraZeneca vaccine and 12 per cent of those who had a Pfizer jab.
