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> RECORD OBS-0551 | status: DEBUNKED | filed 2026-07-31
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COVID-19 vaccines affect fertility

RecordOBS-0551
CategoryHealth/Vaccines
StatusDEBUNKED
SummaryProponents claim that COVID-19 vaccines cause issues with fertility. This includes claims that the vaccine affects menstrual cycles or sperm production.
OriginSpread during the COVID-19 vaccination campaign, often through social media.
Claimed
  • COVID-19 vaccines cause infertility.
  • COVID-19 vaccines affect menstrual cycles.
  • COVID-19 vaccines reduce sperm count.
Evidence / consensusCOVID-19 vaccines do not cause issues with fertility. Temporary menstrual cycle changes and fever-related sperm reduction are not lasting and do not affect ability to get pregnant.
> OBSERVER NOTE:
No evidence of long-term fertility effects. Temporary changes are not equivalent to infertility.

Sources

  1. Debunking COVID-19 myths - Mayo Clinic

Sources are external and provided for verification. Listing does not imply the Observer endorses their claims.