Pediatricians, gynecologists and even health insurers all call Gardasil, the first vaccine to prevent cervical cancer, a big medical advance. But medical groups, politicians and parents began rebelling after disclosure of a behind-the-scenes lobbying campaign by Gardasil's maker, Merck & Co., to get state legislatures to require 11- and 12-year-old girls to get the three-dose vaccine as a requirement for school attendance. Some parents' groups and doctors particularly objected because the vaccine protects against a sexually transmitted disease. Vaccines mandated for school attendance usually are for diseases easily spread through casual contact, such as measles and mumps. Bowing to pressure, Merck said Tuesday that it is immediately suspending its controversial campaign, which it had funded through a third party. Legislatures in roughly 20 states have introduced measures that would mandate girls have the vaccine to attend school. Texas Gov. Rick Perry on Feb. 2 issued an executive order requiring Texas girls entering the sixth grade as of 2008 get the vaccinations. Dr. Anne Francis, who chairs an American Academy of Pediatrics committee [stated] I believe that their timing was a little bit premature," she said, "so soon after (Gardasil's) release, before we have a picture of whether there are going to be any untoward side effects." The country has been "burned" by some drugs whose serious side effects emerged only after they were in wide use, including Merck's withdrawn painkiller Vioxx. The vaccine also is controversial because of its price - $360 for the three doses required.