Overview
- Researchers analyzed healthcare records for nearly 60,000 women aged 18–45 in Region Jönköping County, 75% of whom received at least one COVID-19 dose between 2021 and 2024.
- After adjusting for age, childbirth rates and registered miscarriages showed no statistically significant differences by vaccination status.
- The study concludes vaccines are highly unlikely to explain lower birth counts, citing smaller 1990s birth cohorts plus pandemic-related economic, health and behavioral factors.
- Findings published in Communications Medicine address persistent social-media claims that COVID vaccination harms fertility.
- Earlier evidence, including a 2022 systematic review, found no fertility impairment from vaccination, while reported menstrual changes were temporary and not tied to reduced chances of conception.