According to statistics, more than 80% of women will have at least one HPV infection in their lifetime.
Among them, WHO’s Global Epidemiological Population Survey of HPV Infection found that the peak period of infection is concentrated in two age groups.
Sexually active and perimenopausal at age 45 were the two peak exposures among sexually active women in China.
HPV infection rates by age
More than 200 HPV subtypes have been identified. Different HPV virus infections may cause a variety of different cancers, including a series of cancers such as cervical cancer, vaginal cancer, and anal cancer.
HPV vaccines indirectly prevent cancers such as cervical cancer by protecting against human papillomavirus. At present, more than 100 countries in the world have introduced HPV vaccine, among which the HPV vaccination rate of school-age women in my country is less than 3% [1].
If you want to say goodbye to cervical cancer, be sure to arrange yourself an HPV vaccine!
Why a 9-valent vaccine is so hard to get a shot
HPV viruses can be divided into high-risk and low-risk types based on their pathogenicity.
Among them, the 13 high-risk HPV types of the HPV family are the most threatening to women. They are 16, 18, 31, 33, 35, 39, 45, 51, 52, Types 56, 58, 59, 68;
In addition to 99% of cervical cancers, 70% of vulvar cancers, 90% of anal cancers, and 70% of oropharyngeal cancers are associated with high-risk HPV infections!
Bivalent – specific for cervical cancer
Mainly prevent types 16 and 18. In foreign research results, 70% of cervical cancers can be prevented; but for our people, because the proportion of infection with these two types is higher, so The preventive power of 2 valence can be as high as 84% [2].
Quadvalent – effective in preventing cervical cancer + condyloma acuminatum
The 4 price is more than the 2 price to prevent two low-risk types of HPV 6 and 11. On the basis of the 2 price, it can also reduce the incidence of genital warts by 90% [3].
Nine prices – efficient prevention of cervical cancer + condyloma acuminatum + various other cancers
9-valent prevention has the most types and can effectively prevent 89.5% of cervical cancer occurrences.
Also covers 95.2% of anal cancers, 87.1% of vulvar cancers, 85.3% of vaginal cancers, 84.6% of penile cancers, 90.6% of head and neck cancers, and 90% of genital warts related HPV types [4].
Price 9 has the highest coverage for all types of cancer compared to 2/4 price.