Yeadon and German physician Wolfgang Wodarg sent a letter to the European Medicines Agency, calling on EMA to halt clinical trials of Pfizer’s COVID-19 vaccine in the European Union. In the letter, Wodarg and Yeadon stated that the Pfizer vaccine blocks a protein that is key in the formation of the placenta in mammals, and they claimed that it’s possible women who receive the vaccine could become infertile. However, they did not state as fact that the vaccine causes sterility. RATING: FALSE