Vaccines to prevent cervical cancer.

HPV vaccine is mainly used to prevent cervical cancer. 1. The bivalent vaccine mainly targets HPV 16 and HPV 18, two high-risk viruses, which are associated with about 70% of cervical cancer cases. It is recommended to vaccinate women aged 9 - 45. The specific vaccination age may vary according to the vaccine brand and region. It can significantly reduce the incidence of cervical cancer, and the virus types co-prevented with quadrivalent vaccine can prevent about 80% of cervical cancer. 2. In addition to HPV 16 and HPV 18, quadrivalent vaccine also includes HPV 6 and HPV 11, two low-risk viruses. Among them, HPV 6 and HPV 11 are associated with genital warts such as condyloma acuminatum. In addition to preventing cervical cancer, it can also prevent 90% of condyloma acuminatum and other related diseases caused by HPV. 3. The nine-valent vaccine covers HPV 6, HPV 11, HPV 16, HPV 18, HPV 31, HPV 33, HPV 45, HPV 52 and HPV 58. It is the HPV vaccine with the most virus types currently covered. It can prevent 90%-95% of cervical cancer, as well as vulvar cancer, vaginal cancer, anal cancer, genital warts, persistent infection, precancerous lesions or atypical lesions caused by HPV.