Adult Immunization — Zoster Vaccination after Prior Herpes Zoster
A 51-year-old woman with COPD attends her primary care clinic. She had a painful thoracic dermatomal rash diagnosed as herpes zoster 3 years ago, which healed fully, and she is worried about a recurrence. She uses inhaled tiotropium and salbutamol only and takes no systemic corticosteroids or other immunosuppressants. She has had no shingles vaccine. What is the most appropriate advice?
- A.Recombinant zoster vaccine, two doses 2 to 6 months apartCorrect
- B.Live attenuated zoster vaccine as a single dose
- C.No vaccine, since the prior episode confers lasting immunity
- D.Check varicella zoster IgG and vaccinate only if negative
Explanation
Adults aged 50 years and older should receive the adjuvanted recombinant zoster vaccine as two intramuscular doses given 2 to 6 months apart, and a previous episode of herpes zoster does not change that recommendation. Natural zoster boosts cell-mediated immunity only temporarily, and recurrence occurs in a meaningful minority of people, so vaccination is offered once the acute rash has resolved; no fixed waiting interval is required. The recombinant vaccine prevents more than 90% of zoster in this age group, with protection that persists for at least a decade. The live attenuated vaccine is the main alternative people remember, but it is less effective, its protection wanes within a few years, and it has been withdrawn from the US market and replaced in national schedules by the recombinant product. Serological testing is unnecessary: virtually all adults of this age are seropositive, and the result does not alter management. Inhaled bronchodilators are not immunosuppressive, so COPD itself is no barrier. The point most often missed is that the recombinant vaccine is also recommended from age 19 years for adults who are immunocompromised, in whom the live vaccine would be contraindicated.
Why each option
- A.
- Correct. Recombinant zoster vaccine is recommended for all adults aged 50 or older, including those with previous shingles.
- B.
- The live vaccine is less effective, wanes within a few years and has been replaced by the recombinant vaccine.
- C.
- A previous episode gives only temporary immune boosting; recurrence is well recognised, so vaccination is still advised after healing.
- D.
- Nearly all adults of this age are seropositive, so serology is not needed and does not change the recommendation.
Reference: CDC/ACIP Adult Immunization Schedule 2025; Anderson et al., MMWR 2022;71:80-84 — Use of Recombinant Zoster Vaccine in Immunocompromised Adults; UpToDate — Vaccination for the prevention of shingles (herpes zoster)
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