Phase III clinical trials are currently being completed to verify the efficacy of a prophylactic vaccine against HPV DNA viruses. These vaccines will be type specific.
Vaccination protects a woman from a certain subtype of HPV. Unfortunately, it is preliminarily shown that there will be no cross-immunity against other oncogenic subtypes.
The results of phase III studies confirm a high, almost 100% efficacy, which is, however, specific against a certain type of oncogenic HPV viruses.