Adult and Maternal Vaccination Trends in the U.S.

Why Vaccinations Matter:

Vaccines offer the best protection against infectious respiratory diseases that cause severe illness, hospitalization, and death. Yet, recent data from IQVIA shows that many adults and pregnant women are missing key recommended vaccinations, including those that protect against flu, COVID-19, RSV, pneumococcal disease, and Tdap.

Data Sources:
The data reflect patient-level insights from both private and public insurance plans across all U.S. states, representing 258 million people ages 18+. It draws from IQVIA administrative claims data and incorporates retail pharmacy sales data to provide a more complete picture of vaccination behavior and access.

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Flu vaccination rates among adults 65+ remain higher than those of adults 18–65 but have declined in recent years.

Pneumococcal vaccination rates have recovered from a low in 2021.

Tdap vaccination rates among pregnant women steeply declined in 2025.

COVID-19 vaccination rates are highest among adults 65+, but the rate is dropping.

Adults aged 70+ have the highest RSV vaccination rates, though rates have steeply dropped since 2023.

Eligible pregnant women between the ages of 35–49 have the highest RSV vaccination rate.

Resources

Infectious Respiratory Disease Immunization Timeline: Vaccine Considerations for Adults with Increased Risk

Infectious Respiratory Disease Immunization Timeline: Older Adults (Ages 50+)

Infectious Respiratory Disease Immunization Timeline: Vaccine Considerations for Pregnant Adults

Immunization Glossary