Way to go medical research community! So far, the experimental vaccine for cervical cancer appears to be extremely effective. Four years after receiving it, zero women have developed cancer. This is significantly lower than the prevalence in the general population. (disclaimer - I just caught this on the evening news, haven't checked out the study myself yet, so it's entirely possible that it's a poorly designed study and therefore the results are potentially useless. but, barring that, this is exciting news!)