Background: The development of covid-19 vaccinations represents a notable scientific
achievement. Nevertheless, concerns have been raised regarding their possible detrimental
impact on male fertility
Objective: To investigate the effect of covid-19 BNT162b2 (Pfizer) vaccine on semen
parameters among semen donors (SD).
Methods: 37 SD from three sperm banks that provided 220 samples, were included in that
retrospective longitudinal multicenter cohort study. BNT162b2 vaccination included two
doses, and vaccination completion was scheduled 7 days after the second dose. The study
included four phases….
Rachel Zhang, Team Leader, Clinical Review Staff, FDA: “I guess it [data on durability] will have to come from real-world effectiveness.” Full Video: Episode 273: