Gardasil, a vaccine that protects against HPV (human papillomavirus), has practically become a household word in the United States since it was approved in 2006.
TV commercials featuring young girls chanting "I'm going to be one less" are quite commonplace, and now the vaccine, which protects against the four types of HPV that potentially lead to cervical cancers and genital warts, is being recommended for girls aged 11 to 26.
The development of the HPV vaccines has brought on much controversy. It protects against a sexually transmitted disease, however is being given to young girls who may not yet be sexually active. State governments are debating