Vaccination for Healthy Aging (Medscape, 2026)
Vaccination for Healthy Aging (Medscape, 2026)
Concept & Rationale
• “Immunofitness” = maintaining a well-regulated immune system with aging
• Targets immunosenescence (decline in immune function) and inflammaging (chronic low-grade inflammation)
• Vaccination acts as a functional support tool, not an anti-aging cure
Mechanisms
• May induce trained immunity → broader protection beyond target pathogen
Key Vaccines for Immunofitness
• Strongest impact:
• Influenza
• RSV
• Pneumococcal
• COVID-19
• Herpes zoster
• Others (e.g., tetanus, HPV, hepatitis B): important but impact depends on individual risk
Clinical Benefits Beyond Infection Prevention
• ↓ Cardiovascular events (MI, CV mortality) — strongest with influenza/RSV
• ↓ Hospitalizations (cardiorespiratory causes)
• ↓ Exacerbations of chronic diseases (HF, COPD, diabetes)
• Herpes zoster vaccine:
• ↓ Dementia risk (~30%, stronger in women)
• ↓ mortality
Practical Message
• Vaccination = core preventive strategy in adults/elderly
Take-Home
• Vaccines are no longer just infection prevention tools →
They are part of a broader strategy to maintain systemic health and resilience with aging.
