In the US, all vaccines must be approved or licensed by the Food and Drug Administration (FDA), after which every vaccine is continually evaluated for safety and efficacy. This site reflects evidence-based US immunization recommendations.
Recommendations by Age
Evidence-based immunization schedule for infants and children from the American Academy of Pediatrics (AAP)
Evidence-based immunization schedule for adults based on age and medical conditions from the American Academy of Family Physicians (AAFP)
Latest Posts
Why Vaccines Are Especially Important for Older Adults
Staying up to date on flu, RSV, pneumococcal, and other recommended vaccines can help protect older adults’ health, independence, and community.
5 Reasons Why Vaccines Are Good for Your Heart
For people with heart disease, getting vaccinated is as important to staying healthy as diet and exercise
News Round-Up: Vaccines, Measles, Flu, and COVID-19
News and expert insights on COVID-19, influenza, measles, outbreak preparedness, and vaccine policy—including growing concerns about data gaps, divergent immunization recommendations, and the real-world consequences for public health
Updated August 2025
Sources: American Academy of Pediatrics, American Academy of Family Physicians