"HPV is the world's most common sexually transmitted infection . Vaccines against certain strains of HPV, of which there are hundreds, have existed for almost two decades. Currently a "nine-valent" vaccine protecting against nine strains of HPV that together account for 90% of cervical cancers is licensed in the US."
"Research published in the journal JAMA Pediatrics, has found the extensive HPV vaccination program in the US has driven major reductions in cervical cancer diagnosis, including among unvaccinated women. "Our study demonstrates evidence for herd immunity against cervical cancer-causing HPV in one community and in the setting of high vaccination rates and a gender-neutral vaccination strategy, that is, vaccination of both boys and girls," said the study's senior author, pediatrician Jessica Kahn from the Albert Einstein College of Medicine, US."
Extensive HPV vaccination programs in the United States have produced major reductions in cervical cancer diagnoses and vaccine-covered HPV infections. A nine-valent vaccine licensed in the US protects against nine strains that together account for about 90% of cervical cancers. Analysis of nearly 20 years of data from a higher-risk community showed large declines in vaccine-covered infections, including a 98% decrease for bivalent-targeted strains and a 75% decline among unvaccinated women. Sexual behaviors showed little change, supporting vaccination as the primary cause of declines. Sustaining community resistance will require maintaining high, gender-neutral vaccination rates.
Read at www.dw.com
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