Pfizer/BioNTech’s COVID-19 Vaccine Causes Adverse Reactions in Over Half of Clinical Trial Volunteers
In clinical trials of the experimental messenger RNA (ribonucleic acid) COVID-19 vaccine (BNT162b1), which is being developed by Pfizer, Inc. of New York and BioNTech SE of Mainz, Germany, adverse reactions have occurred in more than 50 percent of the adult participants. The Phase 1/2 human trials of BNT162b1 vaccine, which were conducted May-June 2020, […]
