Absence of SARS-CoV-2 Spike Glycoprotein Expression in Placentas from Individuals after mRNA SARS-CoV-2 Vaccination

Scientists identified 48 patients receiving one or two doses of mRNA SARS-CoV-2 vaccine during gestation and used immunohistochemistry against SARS-CoV-2 Spike protein in formalin-fixed, paraffin-embedded placental tissue.