Evaluate the Efficacy, Immunogenicity and Safety of 9-valent HPV Recombinant Vaccine in Chinese Healthy Females

Inclusion Criteria: (If the "\*" option is not met during screening, the visit can be rescheduled) * Chinese women aged 20-45 who can provide legal identification and have a sexual life history; * The subject fully understands the study procedures, understands the risks and benefits associated with participating in the study, and voluntarily signs the informed consent; * Subjects are able to read, understand and fill in application forms such as diary CARDS and contact CARDS, and participate in follow-up according to the study requirements; * Subjects have not been screened for cervical cancer, or have been screened for cervical cancer but the results are normal; * \*0 days before the gynecological visit, no sex within 48 hours, no flushing or vaginal cleaning within 72 hours, no use of vaginal drugs or preparations;Subject agrees to refrain from sexual intercourse (including anal, vaginal, or genital/genital contact of the same or opposite sex) for 48 hours prior to any visit that includes gynecological sample collection, and to refrain from vaginal flushing, vaginal cleansing, or use of vaginal medications or preparations for 72 hours; * When the subjects were enrolled, the urine pregnancy test was negative (sensitivity was 25mIU/ml cox-hcg), they were not in the lactation period and had no family planning within 7 months after enrollment (1 month before whole-course inoculation).2 weeks before included in the study, effective contraceptive measures has been adopted and a…