Story perspectives

Vaccination Cuts Preterm Births and Stillbirths in Pregnancies

12/17/2025

Summary

Story summary

A study in the Journal of the American Medical Association tracked nearly 20,000 pregnancies in Canada from April 2021 to December 2022 and found vaccination reduces preterm birth and hospitalization.
Vaccination yielded a 20% reduction in preterm births during the Delta wave and 36% during Omicron.
Vaccinated pregnant women also showed lower stillbirth rates.
Elisabeth McClymont, the lead researcher, said vaccination is safe and effective for mothers and infants.

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Story summary

A study in the Journal of the American Medical Association tracked nearly 20,000 pregnancies in Canada from April 2021 to December 2022 and found vaccination reduces preterm birth and hospitalization.
Vaccination yielded a 20% reduction in preterm births during the Delta wave and 36% during Omicron.
Vaccinated pregnant women also showed lower stillbirth rates.
Elisabeth McClymont, the lead researcher, said vaccination is safe and effective for mothers and infants.