The current shingles vaccine (Shingrix) is given as a 2‑shot series, and for most adults it is only done once, not repeated every few years.

Standard schedule

• Adults 50 and older: 2 doses, with the second shot 2–6 months after the first.

• Adults 19 and older with weakened immune systems: also 2 doses, often 1–2 months apart if earlier protection is needed.

How often in a lifetime

• After completing the 2‑dose Shingrix series, no routine booster or repeat series is currently recommended for people with normal immune systems.

• Protection appears to last at least 7–10 years, and guidelines may change as more long‑term data become available, so clinicians may update recommendations over time.

Special situations

• People who had the older Zostavax vaccine are still advised to get the full 2‑dose Shingrix series once, but not to repeat it after that under current guidance.

• Some immunocompromised adults may be advised to have a second series in specific circumstances, so anyone with a weakened immune system should confirm timing and need with their own clinician.