The epidemiology of herpes zoster in immunocompetent, unvaccinated adults ≥50 years old: Incidence, complications, hospitalization, mortality, and recurrence

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Abstract

Background. Data on the epidemiology of herpes zoster (HZ), particularly in the unvaccinated immunocompetent population, are needed to assess disease burden and the potential impact of vaccination. Methods. The study at a large health care organization comprised: (1) incidence estimated from immunocompetent adults aged ≥50 years unvaccinated with zoster vaccine live who had incident HZ in 2011-2015; (2) proportion of HZ-related nonpain complications assessed by double abstraction of electronic health records (EHRs) of 600 incident patients 2011-2015; (3) HZ-related hospitalizations among HZ patients diagnosed in 2015; (4) HZ-related death determined from automated data and EHRs; and (5) recurrent HZ identified from a cohort initially diagnosed with HZ in 2007-2008 and followed through 2016. Results. HZ incidence rate was 9.92/1000 person-years (95% confidence interval [CI], 9.82-10.01). Proportions of cutaneous, neurologic, and other complications were 6.40% (95% CI,1.73%-11.07%), 0.77% (95% CI,.00%-2.36%), and 1.01% (95% CI,.00%-2.93%), respectively. Only 0.86% of patients had an HZ-related hospitalization. The case-fatality rate was 0.04%. Recurrence rate was 10.96/1000 person-years (95% CI, 10.18-11.79) with 10-year recurrence risk of 10.26% (95% CI, 9.36%-11.23%). Conclusions. These recent HZ epidemiology data among an immunocompetent, unvaccinated population measure real-world disease burden.

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APA

Tseng, H. F., Bruxvoort, K., Ackerson, B., Luo, Y., Tanenbaum, H., Tian, Y., … Sy, L. S. (2020). The epidemiology of herpes zoster in immunocompetent, unvaccinated adults ≥50 years old: Incidence, complications, hospitalization, mortality, and recurrence. Journal of Infectious Diseases, 222(5), 798–806. https://doi.org/10.1093/infdis/jiz652

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