Great news about cancer prevention!

The Pediatric Insider

© 2016 Roy Benaroch, MD

The first large, population-based study of real-world changes in cervical cancer screening in the era of HPV vaccination has delivered some great news: the HPV vaccine not only works, but it’s working better than expected.

Researchers looked at rates of CIN, the growth of abnormal cells in the cervix detected by Pap smears, among young women in New Mexico. Even though fewer than 40% of eligible women had received all three doses of the HPV vaccine, rates of these pre-cancerous lesions dropped by over 50%. That’s a huge impact. A safe intervention has cut the incidence of a common cancer by 50%, even in a community where HPV vaccine uptake wasn’t very good. It’s great news, and it hints at even greater news: if we can get more people vaccinated, this cancer-preventer can work even better.

Why did the vaccine work better than expected? There’s a herd effect, where vaccinated individuals help protect everybody by preventing spread of the virus. Plus, the vaccine seems to offer at least some protection against related strains. And it turns out that even women who receive less than the recommended three doses get at least some helpful immunity.

The most-used HPV vaccine in the United States goes by the brand name Gardasil-9, and it protects not only women, but men, too—especially from many cancers of the mouth and throat. Since there’s nothing analogous to a Pap smear for men, it will take longer to see these kinds of cancer-beating effects in the male population, but initial studies relying on rates of infection look very promising.

The HPV vaccine is very safe, and it’s already having a big positive effect in communities. Unfortunately, some parents have been scared away from this vaccine by irresponsible and often flagrantly false internet rumors. Don’t believe the scaremongers. Protect your kids from cancer by making sure they get their HPV vaccines.

Here’s a detailed and well-referenced post from The Skeptical Raptor explaining far more about the Gardasil vaccine, and debunking many of the myths being used to scare parents.

 Q&A from the CDC about HPV and HPV vaccinations

 

MERCK - Merck's HPV Vaccine, GARDASIL®9, now available in Canada

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