Nine-valent does not prevent breast cancer.
The nine-valent vaccine is actually the nine-valent cervical cancer vaccine, which mainly prevents cervical cancer, and does not have any preventive effect on breast cancer, and there is no vaccine related to breast cancer at present.
Clinically, most cervical cancers are closely related to HPV infections, especially high-risk HPV infections such as 16, 18, and so on, and after the nine-valent vaccination, a large number of antibodies can be formed in the human body, thus reducing the chances of HPV infections and reducing the occurrence of cervical cancer.
The prevention of breast cancer still needs to start from the diet, living habits, etc., to maintain a low-fat diet, and actively exercise to improve physical fitness.