Iranian Journal of Immunology

The Impact of Early Postpartum Maternal Pertussis Vaccination on the Protection of Infants: A Randomized Clinical Trial

Document Type : Original Article

Authors

Ayse Kilic 1
Gulcin Otar Yener 1
Aylin Yetim 1
Mustafa Ozcetin 1
Gulbin Gokcay 2
Asuman Coban 3
Zeynep Ince 3
Beril Yasa 3
Lutfiye Oksuz 4
Funda Gungor Ugurlucan 5
Nezahat Gurler 4

1 Department of Pediatrics, Istanbul Medical School, Istanbul University, Istanbul, Turkey

2 Istanbul University Institute of Child Health, Istanbul, Turkey

3 Department of Neonatalogy, Istanbul Medical School, Istanbul University, Istanbul, Turkey

4 Department of Microbiology, Istanbul Medical School, Istanbul University, Istanbul, Turkey

5 Department of Obstetrics and Gynecology, Istanbul Medical School, Istanbul University, Istanbul, Turkey

https://doi.org/10.22034/iji.2019.80273
Abstract
Background: Despite primary vaccination, infants under six months run a risk of infection with pertussis. Objective: To determine the impact of early postpartum maternal pertussis vaccination on protecting infants from the disease. Methods: All mothers (n=405) who gave birth to healthy term infants were educated on the cocoon strategy. The mothers who consented were immunized with the tetanus-diphtheria-acellular pertussis vaccine within the first three postpartum days. All infants received their pertussis vaccines according to the national schedule. The anti-pertussis IgG titers of infants of thirty vaccinated mothers were compared with those of thirty unvaccinated mothers. Results: The pertussis antibody levels in the infants of vaccinated mothers were significantly higher than those of unvaccinated mothers at the mean infant age of 5.6 ± 1.2 months. Only 6 infants of vaccinated mothers exhibited pertussis-like symptoms, none of whom had positive pertussis PCR. Seventeen infants of unvaccinated mothers had pertussis-like symptoms, and 4 tested positive for pertussis PCR. Conclusion: Our results showed that maternal pertussis vaccination, administered within the first three postpartum days, may protect infants against pertussis in their first ten months.

Keywords

Infant
Maternal Immunization
Pertussis Vaccine
Iranian Journal of Immunology
Volume 16, Issue 3
Summer 2019
Pages 225-234

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