"Several vaccine candidates are expected to induce the formation of humoral antibodies against spike proteins of SARS-CoV-2," the letter says. "Syncytin-1… which is derived from human endogenous retroviruses … and is responsible for the development of a placenta in mammals and humans and is therefore an essential prerequisite for a successful pregnancy, is also found in homologous form in the spike proteins of SARS viruses. There is no indication whether antibodies against spike proteins of SARS viruses would also act like anti-Syncytin-1 antibodies. However, if this were to be the case, this would then prevent the formation of a placenta which would result in vaccinated women essentially becoming infertile."December 1, 2020. Dr. med. Wolfgang Wodarg. Germany. CO-PETITIONER: Dr. Michael Yeadon. England, CT3 1RT. TO: European Medicines Agency