Vaccines and pregnancy: past, present, and future

Area of Science:

• Obstetrics and Gynecology
• Immunology
• Public Health

Background:

• Historically, vaccine recommendations during pregnancy were cautious due to concerns about fetal risks.
• Recent data demonstrate the safety and efficacy of specific vaccines for maternal and infant health.
• Existing recommendations primarily include inactivated influenza and tetanus toxoid, reduced diphtheria toxoid and acellular pertussis (Tdap) vaccines.

Purpose of the Study:

• To review the historical context of vaccination in pregnancy.
• To outline current US recommendations for maternal vaccinations.
• To explore future advancements and barriers in prenatal vaccination.

Main Methods:

• Literature review of historical vaccine recommendations.
• Analysis of current guidelines from the US Advisory Committee on Immunization Practices (ACIP).
• Discussion of emerging research on vaccine safety and efficacy during pregnancy.

Main Results:

• Evidence increasingly supports the absence of increased risks for adverse events from vaccines administered during pregnancy.
• Inactivated influenza and Tdap vaccines are currently recommended for all pregnant individuals.
• Data highlight significant benefits of maternal vaccination for both mother and infant protection.

Conclusions:

• Vaccination during pregnancy is a critical public health strategy with proven benefits.
• Continued research and updated recommendations are essential for expanding safe and effective prenatal immunization options.
• Overcoming barriers is necessary to fully realize the potential of future advancements in maternal vaccination.