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HPV genoprevalence and HPV knowledge in young women in Mongolia, five years following a pilot 4vHPV vaccination campaign.


ABSTRACT:

Background

In a 2012 pilot, 9111 Mongolian girls aged 11-17 years received three doses of the quadrivalent (4vHPV) vaccine, Gardasil®. This is the first study to measure early vaccine effectiveness and assess knowledge and attitudes of young women in Mongolia in relation to the human papillomavirus (HPV), the vaccine and cervical cancer.

Methods

A cohort of women vaccinated in 2012 (n = 726) and an unvaccinated cohort (n = 790) provided self-administered vaginal swabs for detection of high-risk HPV genotypes 16, 18/45, 31, 33, 35, 39, 51, 52, 56, 58, 59, 66, 68 five years following vaccination. Participant knowledge and attitudes were assessed through a questionnaire.

Results

A total of 1882 questionnaires and 1516 self-administered vaginal swabs were analyzed. The prevalence of any HRHPV was 39.5% among both cohorts. The prevalence of vaccine-targeted HPV types was significantly lower in the vaccinated cohort than unvaccinated: 4.8% and 17.2% respectively. The 4vHPV was shown to be protective against HRHPV 16, 18/45 with 75% vaccine effectiveness. Participant knowledge was low.

Conclusions

This study demonstrates that the 4vHPV is associated with reduced vaccine-targeted HPV detection rates in young Mongolian women. The questionnaire results highlight a need for awareness-raising initiatives in Mongolia on HPV, the vaccine and cervical cancer.

SUBMITTER: Batmunkh T 

PROVIDER: S-EPMC6658929 | biostudies-literature |

REPOSITORIES: biostudies-literature

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