Why is there no age limit for HPV9-valent vaccine in Hongkong, but there is an age limit for HPV9-valent vaccine in Chinese mainland?

It's not that you can't fight, it's just that there is no evidence of nine-valent efficacy at this age in China. In foreign countries and Hongkong, China, people over 26 and under 45 are still 9 yuan. For regular sexual partners, without high-risk sexual factors, you can also get a price of four.

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Because the cervical cancer vaccine developed and marketed does not cover all high-risk types, vaccination with nine-valent HPV vaccine cannot protect all diseases caused by related tumors or high/low-risk types; Therefore, the US FDA approved the listing of nine-valent HPV vaccine instructions, and clarified the following nine restrictions:

Vaccination with this vaccine cannot cancel/terminate the long-term continuous cervical cancer screening for women (secondary preventive measures). Vaccination cannot cancel/terminate the recommended screening in anal cancer. This vaccine can't protect people infected with human papillomavirus. This vaccine can not protect other types of related diseases other than the corresponding type.

Refer to the above content: Baidu Encyclopedia-Nine-valent HPV Vaccine