British study finds unintended immune response in a third of Pfizer vaccinees
Researchers from the University of Cambridge, in “collaboration with researchers at the Universities of Kent, Oxford and Liverpool”, decided to test “for evidence of the production of ‘off-target’ proteins in people who received the mRNA Pfizer vaccine against COVID-19”. They “found an unintended immune response occurred in one third of the 21 patients in the study who were vaccinated”, and the results were published (Mulroney et al.) in the prestigious Nature journal.