The Adult Vaccine Checklist
The practical version, before the mechanisms
1 min read·Updated July 2026
If you want the practical version before the underlying science, this is it. Everything here is explained and cited properly in the sections that follow.
| Vaccine | Typical adult schedule | Why it's commonly missed |
|---|---|---|
| Tdap / Td booster | Every 10 years | Childhood vaccination feels permanent — protection against tetanus and pertussis isn't. |
| Influenza | Annually | Effectiveness varies by year, but even a partial-match season meaningfully reduces severity — particularly for anyone over 65 or with a chronic condition. |
| Shingles (recombinant) | From age 50 | Often confused with chickenpox immunity — having had chickenpox as a child does not prevent shingles later in life. |
| Pneumococcal | From age 65, or earlier with specific risk factors | Frequently skipped because pneumonia doesn't feel like a "vaccine-preventable disease" to most people the way flu or measles does. |
| HPV | Catch-up eligibility often extends into the mid-20s to mid-40s | Widely assumed to be "too late" once adolescence has passed — check current local eligibility rather than assuming. |
The single most useful thing you can do
Ask your doctor or pharmacist a direct question: "What vaccines am I due for as an adult?" This single conversation resolves most of the gaps this guide describes, since eligibility and local schedules vary by country and change over time.