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vt2022cam t1_j2wj3rs wrote

Reply to comment by SunflowerRenaissance in Can the human body clear a HPV infection copletely? by Terradubia

It was designed for 4 strains but apparently provoked an immune response against 5 other strains. https://www.cancer.gov/types/cervical/research/gardasil9-prevents-more-hpv-types

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SunflowerRenaissance t1_j2wqp0w wrote

I see. Your wording seemed to suggest it prevented more than the 9 the literature currently says. My point in asking for the source is because there are over 150 strains and 14 of them that often cause cancer. The Gardisil9 will only help prevent 9. It doesn't provide protection against any of the others, correct?

https://www.hpv.org.nz/about-hpv/hpv-strains

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vt2022cam t1_j2wsf9e wrote

It protects against the 2 (16 & 18) that cause 90% of the cancers and a couple of the other strains that cause cancer as well as some that cause warts. They haven’t bothered to pay for clinical trials on the other 140 known strains but most of these are not likely to lead to cancer, and theirs no point in wasting money on clinical trials for strains that don’t have a medical necessity. But it is likely to block other strains, they just haven’t had and likely won’t have clinical trials to prove it.

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