Declining Effectiveness of Herpes Zoster Vaccine in Adults Aged ≥60 Years
Understanding long-term effectiveness of herpes zoster (HZ) vaccine is critical for determining vaccine policy. 176 078 members of Kaiser Permanente ≥60 years vaccinated with HZ vaccine and three matched unvaccinated members were included. Hazard ratios and 95% confidence intervals (CIs) associated...
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Published in | The Journal of infectious diseases Vol. 213; no. 12; pp. 1872 - 1875 |
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Main Authors | , , , , , , , , |
Format | Journal Article |
Language | English |
Published |
United States
Oxford University Press
15.06.2016
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Subjects | |
Online Access | Get full text |
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Summary: | Understanding long-term effectiveness of herpes zoster (HZ) vaccine is critical for determining vaccine policy. 176 078 members of Kaiser Permanente ≥60 years vaccinated with HZ vaccine and three matched unvaccinated members were included. Hazard ratios and 95% confidence intervals (CIs) associated with vaccination at each year following vaccination were estimated by Cox regression model. The effectiveness of HZ vaccine decreased from 68.7% (95% CI, 66.3%–70.9%) in the first year to 4.2% (95% CI, –24.0% to 25.9%) in the eighth year. This rapid decline in effectiveness of HZ vaccine suggests that a revaccination strategy may be needed, if feasible. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 0022-1899 1537-6613 |
DOI: | 10.1093/infdis/jiw047 |