TITLE

Protecting the Next Generation: What Is the Role of the Duration of Human Papillomavirus Vaccine-Related Immunity?

AUTHOR(S)
Günther, Oliver P.; Ogilvie, Gina; Naus, Monika; Young, Eric; Patrick, David M.; Dobson, Simon; Duval, Bernard; Noël, Pierre-André; Marra, Fawziah; Miller, Dianne; Brunham, Robert C.; Pourbohloul, Babak
PUB. DATE
June 2008
SOURCE
Journal of Infectious Diseases;6/15/2008, Vol. 197 Issue 12, p1653
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Background. There is strong evidence that human papillomavirus (HPV) is necessary for the development of cervical cancer. A prophylactic HPV vaccine with high reported efficacy was approved in North America in 2006. Methods. A mathematical model of HPV transmission dynamics was used to simulate different scenarios of natural disease outcomes and intervention strategies. A sensitivity analysis was performed to compensate for uncertainties surrounding key epidemiological parameters. Results. The expected impact that HPV vaccines have on cervical cancer incidence and HPV prevalence in the province of British Columbia in Canada revealed that, for lifelong vaccine-related protection, an immunization routine targeting younger females (grade 6), combined with a 3-year program for adolescent females (grade 9), is the most effective strategy. If vaccine-related protection continues for <10 years, then the targeting of adolescent females would be more beneficial than the targeting of younger females. The incremental benefit if boys, as well as girls, are vaccinated is small. Conclusions. Optimization of the design of immunization strategies for treatment of HPV depends substantially on the duration of vaccine-induced immunity. Given the uncertainty in estimating this duration, it may be prudent to assume a value close to the lower limit reported and adjust the program when more-accurate information for the length of vaccine-induced immunity becomes available.
ACCESSION #
32586561

 

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