Cervical cancer vaccine, also known as hpv vaccine, is a vaccine to prevent cervical cancer. There are three kinds of vaccines: bivalent, tetravalent and nonavalent. The titer here represents the subtype of virus covered by the vaccine. The higher the titer, the more virus types are covered. The differences between bivalent, tetravalent and nonavalent hpv vaccines are mainly manifested in the following aspects:
1, inoculation age
Bivalence is applicable to women aged 9-45, tetravalence is applicable to women aged 20-45, and ninevalence is applicable to women aged 16-26.
2. Vaccination time
The bivalent vaccine was injected in three times, at 0, 1 and 6 months respectively; Vaccinate tetravalent vaccine and nonavalent vaccine in October, February and June.
3. Effectively prevent human papillomavirus mode
Bivalent vaccine: It can prevent 70% cervical cancer caused by HPV 16 and 18 viruses, and provide some cross protection.
Tetravalent vaccine: It can prevent four viruses: HPV6, 1 1, 16 and 18, and can prevent 70% of cervical cancer and 90% of condyloma acuminatum.
Nine-valent vaccine: On the basis of four-valent vaccine, five subtypes of human papillomavirus (3 1, 33, 45, 52 and 58) are added, which is said to prevent 90% of cervical cancer!
4. Price
The price of HPV vaccine depends on several titer vaccines. The higher the level, the higher the price. If it is bivalent HPV vaccine, the price is around 600 yuan, the price of tetravalent HPV vaccine is around 800 yuan, and the price of nonavalent HPV vaccine is around 1000 yuan.
Which is better, bivalent, tetravalent or nine-valent hpv vaccine?
Generally speaking, the more the price of hpv vaccine, the better.
From the perspective of preventing cervical cancer, bivalent and tetravalent are almost the same, because only two high-risk types, 16 and 18, can reduce the risk of cervical cancer by about 70%. As for the tetravalent 6 and 1 1 types, they are all low-risk human papillomavirus, mainly to prevent condyloma acuminatum. The role of 9 valence in preventing cervical cancer is much more than that of 2 valence and 4 valence, which can reach more than 90%. Therefore, the nine-valent hpv vaccine is superior to the four-valent and two-valent hpv vaccines.
However, it should be noted that hpv vaccine has a vaccination age limit. If you are over 26 years old, you can't play 9-valent vaccine generally, and you can only choose bivalent and tetravalent hpv vaccines.
Third, can hpv vaccine be priced at nine after four?
Theoretically, yes, but not recommended.