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Antenatal vaccination to decrease pertussis in infants: safety, effectiveness, timing, and implementation
Marina Lumbreras Areta1, Christiane Sigrid Eberhardt2,3, Claire-Anne Siegrist2,4
1a Department of Obstetrics and Gynecology , Geneva University Hospitals and Faculty of Medicine , Geneva , Switzerland.
Insights
Maternal pertussis vaccination during pregnancy is a preferred strategy to protect infants under 6 months. This antenatal immunization provides passive antibody transfer, safeguarding newborns against severe pertussis complications.
Area of Science:
- Immunology
- Pediatrics
- Public Health
Background:
- Pertussis (whooping cough) poses a significant global health threat to infants under six months.
- Neonates and young infants are vulnerable due to their inability to be vaccinated, leading to higher risks of severe complications and mortality.
Purpose of the Study:
- To review evidence on the safety and effectiveness of antenatal pertussis immunization.
- To examine the optimal timing and implementation strategies for maternal pertussis vaccination.
Main Methods:
- Systematic review of reported evidence on maternal pertussis vaccination.
- Analysis of studies focusing on safety, effectiveness, timing, and implementation.
Main Results:
- Maternal vaccination during pregnancy is a preferred strategy over cocooning for infant protection.
- Passive transplacental transfer of pertussis antibodies protects newborns.
Conclusions:
- Antenatal immunization is a key strategy for protecting vulnerable infants from pertussis.
- Further evidence on safety, effectiveness, timing, and implementation is crucial for public health programs.
Abstract:
Pertussis remains a serious global health issue in infants aged less than 6 months. Neonates and young infants have the highest risk of developing pertussis as they are too young to be vaccinated and thus are more likely to develop more severe pertussis-related complications, including death. Protecting this vulnerable age population from pertussis is considered a main priority in many national health programs. Two vaccine strategies exist to protect infants from pertussis: "cocooning" and maternal vaccination during pregnancy. The latter is the more recent and preferred strategy, which protects newborns by passive transplacental transfer of pertussis antibodies. We review the reported evidence on the safety, effectiveness, timing and implementation of this antenatal immunization strategy.
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