CCTV news (reporter Kan Chunyu Lv Yuanyuan): HPV vaccine has been in the Chinese market for 5 years, but for this only vaccine that can prevent cancer, the public still has many questions, CCTV network special launched the "full solution to HPV vaccine" series of programs, connected to Peking Union Medical College Group School of Medicine and Public Health Professor, WHO Director General Cancer Prevention and Control Expert Group member Qiao Youlin, to explain the doubts to readers.
1. If the nine-valent HPV vaccine is not enough, should I first receive bivalent and quadrivalent vaccines?
Qiao Youlin: In fact, a large number of data at home and abroad have proved that the main genotypes that cause cervical cancer are type 16 and type 18, and the bivalent seedlings and quadrivalent seedlings cover these two genotypes, and the quadrivalent seedlings also add two low-risk types - type 6 and type 11, which are mainly to prevent genital warts and other benign diseases.
The preventive effect of these two vaccines on cervical cancer is actually the same. Internationally, the consensus is that vaccines should be vaccinated as early, smaller and faster as possible. If there are bivalent seedlings but wait for four-valent seedlings, there are four-valent seedlings but wait for nine-valent seedlings, and there will be eleven-valent seedlings and fourteen-valent seedlings after the nine-valent seedlings.
The nine-valent vaccine has increased by 5 genotypes, and its protective coverage can reach more than 90%, but in fact, the risk of cervical cancer in women is not so high, less than 1%. In this case, you can't wait to increase the protection range a little more, in the process of waiting, often many women are infected, in this case, we recommend that there should be any vaccine to get what vaccine.
2. HpV vaccination for girls is free in some areas, why are adult women not included?
Qiao Youlin: There are indeed some adult women who are very anxious, they feel that they did not have a shot when they should have been shot before, and now that they have a vaccine, they should be vaccinated first. In fact, these women should also be vaccinated, especially young women, when the sexual activity is more active, they should indeed be vaccinated. But I have to admit that the protective effect of her vaccination is definitely not 99% and 100%, because she may have been infected before, and the virus may already be in her body. At a time when vaccines are just beginning to be widely available and there is still a shortage of supplies, I think it is still necessary to first vaccinate the most protected girls under the age of 15 who should be most protected and have the best immune effects.