hpv vaccine bivalent tetravalent nine-valent difference

The difference between bivalent, quadrivalent and nine-valent HPV vaccines is that they are different subtypes, used in different populations and at different prices. Bivalent vaccines are suitable for preventing HPV types 16 and 18 viruses. The appropriate age for women is between 9 and 25 years old. The price is relatively cheap. Quadrivalent vaccines, in addition to preventing the above two virus types, also include types 6 and 11 viruses, suitable for women aged 20 to 45 years old, and men. The price is slightly more expensive than bivalent vaccines. Nine-valent vaccine, it can prevent 16,18,6,11,31,33,45,52 types of cervical virus, can prevent cervical cancer, vaginal cancer, vulvar cancer prevention up to 95%, is the highest level of HPV vaccine development at this stage, the price is also the highest.