The American College of Obstetricians and Gynecologists (ACOG) now recommends that all pregnant patients receive COVID-19, RSV, influenza, and Tdap vaccines, officially diverging from the US Centers for Disease Control and Prevention (CDC) immunization schedule. This independent guidance, released in early 2026, marks a significant shift in public health alignment following a period of increasing friction between the professional medical society and federal health agencies.
Why is ACOG issuing its own vaccine schedule?
ACOG leadership developed its independent immunization schedule to address what it characterizes as a need for scientific clarity and evidence-based clinical guidance. According to Dr. Laura Riley, chair of ACOG’s Immunization, Infectious Disease, and Public Health Preparedness Expert Work Group, the move follows a rigorous internal review of efficacy and safety data. The organization withdrew from the CDC’s Advisory Committee on Immunization Practices (ACIP) as a liaison in February 2026, citing concerns that the committee’s scientific integrity had been compromised.
How do ACOG and CDC recommendations differ?
The primary point of divergence stems from the CDC’s decision in May 2025 to drop its recommendation for the COVID-19 vaccine for pregnant individuals. While the CDC continues to align with ACOG on the necessity of RSV and Tdap vaccines, the two organizations also differ on product specifics. For instance, the CDC advises pregnant patients to receive flu shots free of thimerosal, a preservative. In contrast, ACOG states that vaccines containing thimerosal are safe for use during pregnancy.
| Vaccine | ACOG Stance | CDC Stance |
|---|---|---|
| COVID-19 | Recommended | Not currently recommended |
| Thimerosal (Flu) | Safe | Advocates for thimerosal-free |
What is the role of maternal vaccination in newborn health?
Maternal vaccination serves as a critical bridge for newborn immunity, as infants are born with underdeveloped immune systems. According to the American Society of Microbiology, newborns are in a transition phase, moving from the sterile environment of the womb to a world filled with new pathogens. By vaccinating during pregnancy, mothers pass protective antibodies to their babies. Dr. Andrew Racine, president of the American Academy of Pediatrics (AAP), describes this as one generation protecting the next.
Which organizations support the new ACOG guidance?
Thirteen professional medical societies have formally endorsed ACOG’s 2026 immunization schedule. This coalition includes the American Academy of Pediatrics (AAP), the American Academy of Family Physicians (AAFP), the Infectious Diseases Society of America, and the American College of Nurse-Midwives. Dr. Margot Savoy, chief medical officer of the AAFP, noted that this alignment reflects a unified effort to ensure pregnant patients maintain access to essential, life-saving immunizations.
Frequently Asked Questions
Why did ACOG withdraw from the CDC advisory committee?
ACOG withdrew in February 2026, citing concerns that the CDC’s Advisory Committee on Immunization Practices (ACIP) was no longer maintaining a sufficiently evidence-based approach to its decision-making process.
Is it safe to receive a flu shot with thimerosal during pregnancy?
Yes, according to ACOG, vaccines containing thimerosal are safe for pregnant patients, despite the CDC’s preference for thimerosal-free versions.
How can I discuss my concerns about vaccines with my OB-GYN?
Experts suggest using your prenatal appointments to ask specific questions. Physicians like Dr. Laura Riley encourage patients to voice their concerns, as these regular visits are designed to build trust and provide accurate, evidence-based information.
Have questions about your prenatal care plan or vaccination schedule? Talk to your OB-GYN during your next visit to ensure you have the latest information tailored to your health. Subscribe to our newsletter for ongoing updates on maternal and infant health research.
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