: Why is HPV less effective for people older than 18 years old?

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“The HPV vaccine is most effective in early adolescence, but this starts to decrease by age 18. Because of this, it is unlikely to provide much benefit for cancer prevention as people get older. The ACS does not recommend HPV vaccination for persons older than age 26 years.”

-cancer.org

Well yes, but why/how?

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2 Answers

Anonymous 0 Comments

Because your chances of being exposed to variants the vaccine doesn’t work increase as you are aging/sexually active. That ACS guidance is outdated, both CDC and Canadian vaccine advisory body recommend HPV vaccines at all ages – it might not be as effective, but the more people are vaccinated, the less chances of spread.

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