Sperm Parameters Before and After COVID-19 mRNA Vaccination

JAMA. 2021 Jul 20;326(3):273-274. doi: 10.1001/jama.2021.9976.

Abstract

To address vaccine hesitancy based on concerns about fertility, this study assesses sperm parameters before and after mRNA vaccine administration.

MeSH terms

  • Adult
  • COVID-19 Vaccines / adverse effects*
  • Fertility / drug effects
  • Humans
  • Male
  • Prospective Studies
  • Semen Analysis
  • Sperm Count*
  • Vaccines, Synthetic / adverse effects*
  • mRNA Vaccines

Substances

  • COVID-19 Vaccines
  • Vaccines, Synthetic