Modelling the impact of immunization on the epidemiology of varicella zoster virus

M. Brisson*, William Edmunds, N. J. Gay, B. Law, G. De Serres

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    212 Citations (Scopus)


    The objective of this study was to develop and apply a dynamic mathematical model of VZV transmission to predict the effect of different vaccination strategies on the age-specific incidence and outcome of infection. To do so a deterministic realistic age-structured model (RAS) was used which takes account of the increased potential for transmission within school aged groups. Various vaccine efficacy scenarios, vaccine coverages and vaccination strategies were investigated and a sensitivity analysis of varicella incidence predictions to important parameters was performed. The model predicts that the overall (natural and breakthrough) incidence and morbidity of varicella would likely be reduced by mass vaccination of 12-month-old children. Furthermore, adding a catch-up campaign in the first year for 1-11 year olds seems to be the most effective strategy to reduce both varicella incidence and morbidity (in the short and long term), through with the possible detrimental effect of increasing the incidence of zoster.

    Original languageEnglish
    Pages (from-to)651-669
    Number of pages19
    JournalEpidemiology and Infection
    Issue number3
    Publication statusPublished - 2000


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