Facts about Human papillomavirus (HPV) vaccines


  • HPV vaccines are close to 100% effective in preventing HPV infection and precancerous conditions that may lead to cervical cancer, if the vaccine is given before a person is exposed to the HPV types contained in the vaccine.
  • HPV vaccines appear to be safe and generally are well tolerated.
  • Two HPV vaccines have been developed. Both prevent infection with type 16 and -18, and may prevent up to 70% of cervical cancers. One of the vaccines also prevents infection with HPV-6 and -11, and may prevent about 95% of genital warts.