Cervical cancer has always been one of the diseases threatening women's health. As a disease whose incidence is only lower than breast cancer, in order to prevent cervical cancer, many women choose to inject cervical cancer vaccine. So, what are the cervical cancer vaccines currently on the market? What is the difference between each? Can the nine-valent vaccine achieve lifelong epidemic prevention?
1. What cervical cancer vaccines are available on the market?
There are currently three main cervical cancer vaccines on the market: divalent, quadrivalent and ninth-valent. Because these three vaccines contain different HPV genotypes, their scope of protection is different. But as far as the scope of the vaccine itself is concerned, it is still safe and effective. Therefore, don't worry too much about the effectiveness of the vaccine, just consider the actual situation of the individual.
2. What is the scope of diseases that the cervical cancer vaccine can prevent? The
bivalent vaccine itself contains only two genotypes, so its prevention range is slightly smaller, but it can also prevent 70% of cervical cancer and precancerous lesions. The quadrivalent vaccine is developed on the basis of the bivalent vaccine. The quadrivalent vaccine mainly increases the two genotypes of HPV6 and HPV11, which can help prevent 90% of genital warts. The nine-valent vaccine has expanded the scope of prevention compared with the four-valent vaccine. The nine-valent vaccine adds five high-risk HPV genotypes, including five genotypes 31, 33, 45, 52, and 58, which can prevent cervical cancer. The range has also increased to more than 90%. Can
three or nine-valent cervical cancer vaccines be immunized for life?
no matter which kind of vaccine is able to prevent the diseases covered by the vaccine, this is supported by scientific evidence. The nine-valent vaccine only increases the protection rate against cervical cancer, but this does not mean that the nine-valent vaccine can be immunized for life. The nine-valent vaccine also has its limitations. After receiving the nine-valent vaccine, cervical cancer screening and anal cancer screening cannot be stopped. And if it is a vaccine vaccinated after being infected with HPV, then the nine-valent vaccine cannot protect the vaccinated person.
In general, the nine-valent vaccine can prevent 90% of cervical cancer, but it is not effective for life, because the nine-valent vaccine itself has limitations. Therefore, after receiving the nine-valent vaccine, the cervical cancer vaccine screening and anal cancer vaccine screening should be continued. It is even necessary to vaccinate again when necessary to ensure its effectiveness.
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