How Effective is Cervical Cancer Vaccine

Story Published: Aug 20, 2008 at 5:59 PM EST

Story Updated: Aug 20, 2008 at 5:59 PM EST

New research is examining the lingering questions surrounding the Gardasil vaccine.
It debuted in 2006 as the first real anti-cancer vaccine and an easy
way to reduce young girls' risk of developing deadly cervical cancer.
How well will it actually prevent cervical cancer? The final answer won't
be known for decades.
Preliminary evidence suggests that Gardasil is highly effective at reducing
pre-cancerous lesions, but full-blown cervical cancer takes many years to develop, so the true
test is yet to come.
Also, girls' immunity may wear off over time, making booster shots necessary.

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