Recommended Adult Immunization Schedule
All adults should receive routine vaccinations according to the CDC's Advisory Committee on Immunization Practices (ACIP) recommendations, including annual influenza vaccination, tetanus-diphtheria boosters, and age-appropriate pneumococcal, zoster, and other vaccines based on risk factors. 1
Core Vaccinations for All Adults
Influenza Vaccine
- Annual vaccination recommended for all adults regardless of age 1
- Options include:
- Inactivated influenza vaccine (IIV)
- Recombinant influenza vaccine (RIV)
- Live attenuated influenza vaccine (LAIV) for healthy, non-pregnant adults under 50 years
- Adults ≥65 years should preferably receive high-dose or adjuvanted formulation 2
Tetanus, Diphtheria, Pertussis (Td/Tdap)
- One-time dose of Tdap for all adults who have not previously received it 1
- Td or Tdap booster every 10 years thereafter 1
- Pregnant women: One dose of Tdap during each pregnancy, preferably between 27-36 weeks gestation 1
- Administration: Intramuscular injection in deltoid muscle 3
Age-Based Recommendations
Adults 19-26 years
- Human Papillomavirus (HPV): 2 or 3 doses depending on age at initial vaccination 1
- Measles, Mumps, Rubella (MMR): 1 or 2 doses for adults born in 1957 or later without evidence of immunity 1
- Varicella (VAR): 2 doses if born in 1980 or later without evidence of immunity 1
Adults 27-49 years
- HPV: Shared clinical decision-making for adults 27-45 years 1
- Hepatitis A and B: For those at risk (see risk factors below) 1
Adults 50-64 years
- Pneumococcal vaccine: Single dose of pneumococcal conjugate vaccine (PCV) for all adults ≥50 years 4
- Zoster recombinant vaccine (RZV): 2 doses at age ≥50 years 1, 2
Adults ≥65 years
- Pneumococcal vaccines:
- Zoster recombinant vaccine (RZV): 2 doses preferred over zoster live vaccine (ZVL) 2
Risk-Based Recommendations
Hepatitis A Vaccine
- 2 or 3 doses for adults with:
Hepatitis B Vaccine
- 3 doses for adults with:
- Administration: Intramuscular injection 5
Meningococcal Vaccines
- MenACWY: 1 or 2 doses for adults with:
- MenB: Consider for adults aged 19-23 years; recommended for those with specific risk factors 1
Haemophilus influenzae type b (Hib)
- 1 or 3 doses for adults with:
Special Populations
Pregnant Women
- Recommended: Influenza vaccine (inactivated), Tdap 1
- NOT recommended: MMR, Varicella, Zoster live vaccine 1
- Delay: HPV, Zoster recombinant vaccine 1
Immunocompromised Individuals
- Avoid live vaccines: MMR, Varicella, LAIV, Zoster live vaccine 1
- Recommended: Additional pneumococcal vaccination 1
- PCV13 strongly recommended for adults ≥65 years with immunocompromising conditions 2
Adults with Chronic Conditions
- Diabetes: Additional indication for hepatitis B, pneumococcal vaccines 1
- Chronic liver disease: Additional indication for hepatitis A and B, pneumococcal vaccines 1
- Heart or lung disease: Additional indication for pneumococcal vaccines 1
- End-stage renal disease: Additional indication for pneumococcal, hepatitis B vaccines 1
Common Pitfalls to Avoid
- Inadequate pneumococcal vaccination: Failure to revaccinate with PPSV23 in patients who received it before age 65 2
- Improper vaccine timing: PCV13 and PPSV23 should not be administered simultaneously 2
- Missing high-risk indications: Smoking is an indication for pneumococcal vaccination 2
- Overlooking Tdap: Adults should receive one lifetime dose of Tdap, regardless of when they received their last Td 1
- Neglecting influenza vaccination: Annual vaccination is recommended for all adults 1
Vaccination Coverage Challenges
Despite recommendations, vaccination coverage among adults remains suboptimal:
- Pneumococcal vaccination coverage among adults ≥65 years and those with high-risk conditions remains below target levels 6
- Barriers to pneumococcal vaccination include lack of provider recommendation, low awareness, and misconceptions 7
- Age-based recommendations (such as for influenza) tend to achieve higher coverage rates than risk-based recommendations 8
By following these evidence-based recommendations, healthcare providers can help improve vaccination rates and reduce the burden of vaccine-preventable diseases among adults.