In a September 2011 Republican presidential debate in Tampa, Bachmann criticized Rick Perry for his support for the humanpapilloma virus (HPV) vaccine and his support for mandating the HPV vaccine for all sixth-grade Texas girls. The American Academy of Pediatrics, Centers for Disease Control and Prevention, American Academy of Family Physicians, American College of Obstetricians and Gynecologists, Advisory Committee on Immunization Practices and other medical organizations worldwide support immunizing girls and boys against HPV. HPV can cause lesions and genital warts, and has been linked to cervical cancer as well as genital and oral cancers in people of any gender. Because the vaccine is effective only if given before the onset of sexual activity and subsequent exposure to the virus, medical groups recommend the three-dose vaccine be given to 11- and 12-year-olds. During the debate and in interviews afterward, Bachmann accused Perry of "crony capitalism" (because Perry's former chief of staff was chief lobbyist for a drug company manufacturing the vaccine), and baselessly claimed that the HPV vaccine was dangerous and caused "mental retardation." She repeatedly referred to an anecdotal account from a mother of a girl who had been immunized for HPV, saying, "She told me that her little daughter took that vaccine, that injection, and she suffered mental retardation thereafter ... There is no second chance for these little girls if there is ["sic"] any dangerous consequences to their bodies." Shortly after Bachmann's statements at the debate, the American Academy of Pediatrics released a statement: "The American Academy of Pediatrics would like to correct false statements made in the Republican presidential campaign that the HPV vaccine is dangerous and can cause mental retardation. There is absolutely no scientific validity to this statement. Since the vaccine has been introduced, more than 35 million doses have been administered, and it has an excellent safety record." Fewer than one percent of those receiving the vaccine reported neurological side effects or, in rare cases, severe allergic reactions, none linked to changes in cognitive ability. Bachmann later acknowledged that she was not a doctor or a scientist.