People who suffered from myocarditis after receiving an mRNA-based COVID-19 vaccine were found to have persistently higher levels of circulating spike protein compared to those who also received an mRNA-based COVID-19 vaccine but did not develop myocarditis, according to findings from a new study.
The study, published Jan. 4 in the Journal of the American Heart Association, sought to understand better the immune profiles—also referred to as immunoprofiles—of people who suffered from myocarditis after receiving an mRNA-based vaccine.
From January 2021 through February 2022, researchers prospectively obtained blood samples from 61 adolescents and young adults, all of whom had been vaccinated with either the Pfizer or Moderna COVID-19 mRNA vaccine….