SILGARD - VACCINE - MERCK AG

Cancer of the cervix is the second cause of death in young women after breast cancer, informed Thursday. It is caused by a virus called human papilloma virus and certain types causing disease.
50% of women worldwide are infected with the virus, which has 300 varieties, but they do not get complications.
Annual ill about 500 thousand women in the world, with around
  250 to 300 of them die. On June 8 last year's vaccine approved by the U.S. Food and Drug Administration, and on 20 September the European Commission.
There have been five years of clinical trials on 25 thousand young women, including 100% is found to overcome the possible contagion.
It must be done according to a schedule - within six months to put as intramuscular injections three doses.