#1: Study Shows First Statistical Evidence for Herd Protection from HPV Vaccine
Research recently presented at the 2017 Epidemic Intelligence Service (EIS) Conference in Atlanta, Georgia provided the first statistical evidence for herd protection as a result of human papillomavirus (HPV) vaccination. The study was conducted over the course of 11 years and evaluated the effectiveness of the vaccine in females.
Lieutenant commander Sara Oliver, MD, MSPH, and her team “used National Health and Nutrition Examination Survey (NHANES) demographic and self-reported vaccination data along with HPV DNA gleaned from self-collected cervicovaginal specimens to estimate HPV prevalence during three distinct eras: the pre-vaccine era, early-vaccine era, and recent-vaccine era.” Among the 18- to 24-year-old women in the pre-vaccine era group, HPV prevalence was 18.8%, compared to 16.9% in the early-vaccine era, and 7.1% in the recent-vaccine era. That vaccine type prevalence decreased in non-vaccinated females indicates herd protection. No significant changes or differences in the sexual behaviors of unvaccinated vs vaccinated women were noted.
Although an overall decline in the presence of HPV was noted, “a relatively higher prevalence of HPV in the unvaccinated population indicates that ‘HPV is not just going away anyway.’” Therefore, Dr. Oliver encouraged healthcare providers to continue to make strong recommendations to get adolescents vaccinated.
Read more about the results of this HPV study here
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