By Dr. Tomislav Meštrović, MD, Ph.D. Apr 12 2021 A new study by Israeli researchers tested the hypothesis that certain SARS-CoV-2 variants of concern can overcome protection conferred by Pfizer-BioNTech (BNT162b2) mRNA vaccine and found evidence of increased breakthrough rates in vaccinated individuals. The research paper is currently available on the medRxiv*preprint server. Study: Evidence for increased breakthrough rates of SARS-CoV-2...