BREAKING: “Pfizer’s primary mRNA injections ‘temporarily’ impair semen concentration and total motile count among donors.”

The scope of the study did not include the effects of additional “booster” injections.

CAPSULE: A retrospective longitudinal multicenter comparison reveals temporary sperm concentration reduction 3 months post BNT162b2 vaccination and later recovery. Semen volume and motility remain stable.

This article has been accepted for publication and undergone full peer review but has not been through the copyediting, typesetting, pagination and proofreading process, which may lead to differences between this version and the Version of Record. Please cite this article as

Covid-19 vaccination BNT162b2 temporarily impairs semen concentration and total motile count among semen donors
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