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Perspective

Can varicella immunization change the course of herpes zoster while herpes zoster vaccine is underway?

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Pages 219-224 | Published online: 10 Jan 2014
 

Abstract

There is a theoretical risk, arising from mathematic models, that a universal varicella vaccination program might lead to an increase in herpes zoster (HZ) incidence. We have searched the Medline database to review HZ epidemiologic data in countries that have had varicella vaccination programs in place for many years, and in countries with either short-term routine varicella vaccination programs or no varicella vaccination programs, to examine whether these programs influence HZ incidence. We have also taken into account factors that may affect HZ epidemiology over time, such as use of the new zoster vaccine. Increases in HZ incidence rates have been observed in many countries that have had no varicella vaccination program in place for the last 20 years. The hypothesis that the decreased exposure of adults to the varicella zoster virus owing to routine varicella vaccination programs might increase HZ incidence has not been consistently proven by current data. The combined routine implementation of varicella and HZ vaccines is expected to lead to considerable reduction of both illnesses in the future.

Financial & competing interests disclosure

Georgios Trimis and Dimos Florakis work in the Medical Department of Vaccine Unit in the pharmaceutical company VIANEX, representative of Sanofi Pasteur MSD in Greece. The authors have no other relevant affiliations or financial involvement with any organization or entity with a financial interest in or financial conflict with the subject matter or materials discussed in the manuscript apart from those disclosed.

No writing assistance was utilized in the production of this manuscript.

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