Due to different medical policies in different places, the suitable vaccination age of nine-valent hpv vaccine in China is 16-26 years old, while in Hong Kong it is relaxed to 9-45 years old. One or two shots, and those who want to complete three shots can also be vaccinated in the mainland.
Inoculated population
The age range of nine-valent HPV vaccine approved for marketing in China is 16-26-year-old women. The reason for this age group is from three aspects:
1. Clinical trials supporting the marketing of this vaccine include1women aged 6-26. At this age, the data of overseas clinical research and the protective effect of vaccines on persistent infection in East Asian people show that the advantages outweigh the disadvantages.
2. The probability of having sex with girls aged 9 ~ 15 in China is very low. Vaccinators aged 9 ~ 15 only carried out immune bridging test, and the clinical research data of East Asian Chinese population in this test were limited.
3. Women over the age of 26 may have a history of virus exposure and infection, but there is no evidence to prove that this vaccine has a protective effect on exposed people of this age.