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Failure to Detect SARS-CoV-2 RNA in the Air During Active Labor in Mothers Who Recently Tested Positive
Corina N Schoen1, Elizabeth Morgan1, Heidi K Leftwich2
1Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, University of Massachusetts Medical School-Baystate, Springfield, MA, United States.
Frontiers in Public Health
|May 16, 2022
Summary
Airborne transmission of SARS-CoV-2 during vaginal delivery appears low. Mask use and ventilation likely mitigate risks for unvaccinated mothers, but further research is needed.
Area of Science:
- Virology
- Obstetrics
- Infectious Disease Epidemiology
Background:
- The potential for SARS-CoV-2 transmission during labor and delivery requires further investigation.
- Understanding airborne transmission risks is crucial for protecting both mothers and healthcare workers.
Purpose of the Study:
- To assess the risk of airborne SARS-CoV-2 transmission from unvaccinated mothers during vaginal delivery.
- To evaluate the effectiveness of mitigation strategies like mask use and room ventilation.
Main Methods:
- Air samples were collected near and far from six unvaccinated, SARS-CoV-2 positive mothers during vaginal delivery.
- Samples were analyzed for SARS-CoV-2 RNA.
- The limit of detection for the air sampling method was validated.
Main Results:
- SARS-CoV-2 RNA was not detected in any air samples collected during the deliveries.
- All but one patient wore masks, and deliveries occurred in well-ventilated rooms.
Conclusions:
- Initial evidence suggests airborne transmission of SARS-CoV-2 during vaginal labor may be low.
- Mask use and high ventilation rates appear to be effective mitigation strategies.
- Further research is necessary to fully assess transmission risks during labor and maternal pushing.
