So of course the claim is labelled false, not "mostly false", outright false as in "there's nothing to it whatsoever", followed by a "snopes" virtue signal message such as "we fight infodemic!" Pissbags Anyway, here's the so called rebuttal, which is an absolute joke intellectually speaking >>In early December 2020, social media users shared rumors that the “head of Pfizer research” had warned that the drug company’s new COVID-19 vaccine would cause sterilization in women. The story was sourced from a blog called Health and Money News and referenced statements made by Michael Yeadon, who is not the head of Pfizer research. **Yeadon did work for Pfizer** but left the company in 2011, according to his biographical information in the blog “Lockdown Sceptics,” to which Yeadon has contributed. **His title at Pfizer was vice president and chief scientist for allergy and respiratory.** See that? Of course the guy has nothing to do with pfizer and is anything but "head of pfizer research"! He just "did work for Pfizer" as " vice president and chief scientist for allergy and respiratory", "big difference! Oranges and apples huhuhuh-hu!". Fuckheads >>**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, as the Health and Money News headline suggests. So, the Pfizer vaccine blocks a protein that is key to mammal reproduction, according to the former Pfitzer vice president and chief scientist for allergy and respiratory. Therefore, according to snopes logic, zero chance for a vaccine induced infertility/sterilization here, because eh, snopes! Fucktards