With undue concern about the COVID 19 mRNA vaccines (Pfizer, Moderna) having an adverse impact on male fertility, due primarily to social media misinformation, data was needed to disprove this.  A study out of the University of Miami was published in JAMA revealing no worsening of semen parameters after receiving the vaccine.  Dr. Parviz Kavoussi was interviewed on his opinion on this data by MedPage Today.  Dr. Kavoussi states, “Although we understood the mechanism of action of mRNA vaccines should not have an adverse impact on male fertility, it is reassuring to have the data that proves it, and hopefully this will help alleviate some of the vaccine hesitancy induced by the previous circulating misinformation.”

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