Adult Immunization: The Vaccines Most Commonly Recommended After Childhood
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Why Immunization Doesn't Stop at 18
Many adults assume their childhood vaccine series provides lasting protection against all vaccine-preventable diseases. In practice, that's rarely the case. Immunity from some vaccines wanes over time, new vaccines have been developed since many adults were children, and certain infections pose distinctly greater risks to adults than to children. As a result, the ACIP — the expert body that advises the CDC — publishes an annual adult immunization schedule covering vaccines recommended across different life stages and risk categories.
Understanding which vaccines apply to you depends on your age, health status, occupation, travel history, and prior vaccination record. This article provides a reference-level overview of the vaccines most commonly recommended for adults in the United States. It is general health information, not personal medical advice — always discuss your specific vaccination needs with a qualified healthcare provider.
For a broader look at how recommendations evolve across the lifespan, see the complete immunization timeline from infancy through later life.
| Schedule authority | ACIP (Advisory Committee on Immunization Practices), updated annually (CDC, Advisory Committee on Immunization Practices) |
| Annual vaccine recommended for all adults | Influenza (flu shot) (CDC Adult Immunization Schedule) |
| Td booster frequency | Every 10 years after initial Tdap dose (CDC Adult Immunization Schedule) |
| Shingles vaccine recommended from age | 50 (immunocompetent adults); 19+ for immunocompromised (ACIP Recommendations, CDC) |
| Hepatitis B recommendation | All adults through age 59; shared decision-making at 60+ (CDC Adult Immunization Schedule) |
| HPV vaccine catch-up age | Through age 26 for all unvaccinated adults (ACIP Recommendations, CDC) |
Core Vaccines Recommended for Most Adults
Several vaccines are recommended for virtually all adults who did not complete the series during childhood or whose protection has waned.
Influenza (Flu)
Annual flu vaccination is recommended for all adults without a medical contraindication. The influenza virus mutates each season, which is why a new formulation is needed each year. Adults 65 and older are often directed toward higher-dose or adjuvanted formulations because aging reduces standard vaccine response.
Tdap / Td (Tetanus, Diphtheria, Pertussis)
Adults who have never received a Tdap vaccine should receive one dose, followed by a Td booster every 10 years. Pregnant individuals should receive Tdap during each pregnancy — typically between 27 and 36 weeks — to protect newborns from whooping cough before they are old enough for their own doses.
COVID-19
The CDC recommends that all adults stay current with updated COVID-19 vaccines. Formulations are periodically revised; your provider can advise on the currently recommended version and timing.
Pneumococcal Vaccines
Adults 65 and older are routinely recommended pneumococcal vaccination. Certain adults under 65 with conditions such as diabetes, chronic lung disease, or immunocompromising conditions also qualify. More than one pneumococcal vaccine type exists; the appropriate choice and sequence depend on prior vaccination history.
ACIP
The Advisory Committee on Immunization Practices is a group of medical and public health experts that advises the CDC on vaccine use in the United States. Its recommendations form the basis of the national immunization schedule.
Waning immunity
The gradual decline in the level of protective antibodies or immune memory following vaccination or natural infection. Waning immunity is a key reason booster doses are needed for some vaccines.
Booster dose
An additional vaccine dose given after the primary series to restore or strengthen immunity that has declined over time.
Postherpetic neuralgia
A complication of shingles characterized by persistent, often severe nerve pain in the area where the rash appeared, lasting months or years after the rash resolves.
Serogroup
A classification of bacteria or viruses into subgroups based on the specific antigens on their surface. Meningococcal vaccines target different serogroups because not all strains are covered by a single formulation.
Shared clinical decision-making
A process in which a patient and their healthcare provider jointly weigh the benefits, risks, and personal factors before reaching a medical decision — used when a recommendation is not uniform for all people in a group.
Vaccines Recommended Based on Age, Risk, or Circumstances
Beyond the core series, ACIP identifies vaccines that are recommended for adults who meet specific criteria.
Shingles (Recombinant Zoster Vaccine)
The recombinant zoster vaccine (RZV) is recommended for all immunocompetent adults 50 and older in a two-dose series. It is also recommended for immunocompromised adults 19 and older. Shingles risk rises sharply with age; the vaccine significantly reduces both the likelihood of disease and the risk of prolonged nerve pain (postherpetic neuralgia). For more on how aging affects vaccine recommendations, see what changes about immunization after 60.
HPV (Human Papillomavirus)
The HPV vaccine is recommended through age 26 for all adults not previously vaccinated. Shared clinical decision-making guides vaccination for adults aged 27–45 — some in this group may still benefit, particularly those with limited prior exposure.
Hepatitis A and Hepatitis B
Hepatitis B vaccination is now recommended for all adults through age 59, and for adults 60 and older based on individual preference or risk. Hepatitis A is recommended for adults with liver disease, those traveling to certain countries, or others at elevated risk.
Meningococcal Vaccines
Meningococcal vaccines target two different bacterial serogroups. College freshmen living in dormitories, military recruits, travelers to endemic regions, and people without a functioning spleen are among those recommended to receive one or both types.
If you suspect gaps in your vaccination history, the guide to immunity gaps adults often overlook is a useful starting point. It is also worth getting your vaccination records in order before meeting with your provider.
Special Populations Require Individualized Guidance
Talking to Your Provider and Staying Current
No reference guide replaces an individualized conversation with your physician, pharmacist, or public health nurse. Several factors — including immunosuppressive medications, pregnancy, recent infections, and prior vaccination records — directly influence which vaccines are appropriate and when. Adults with chronic conditions or compromised immune systems often follow modified schedules; the reasons some people need additional or earlier doses are worth understanding before your appointment.
The CDC's adult immunization schedule is updated annually and available through the CDC website. Many state and local health departments also maintain immunization information systems that can help you verify your vaccination history if records are incomplete.
This article is for general informational purposes only and does not constitute medical advice. Consult a licensed healthcare professional for guidance tailored to your personal health history and circumstances.
The content on this site is for informational purposes only and is not a substitute for professional advice. Always consult a qualified professional for guidance specific to your situation.