In female malignant tumors, the incidence of cervical cancer is second only to breast cancer, and most cervical cancers are caused by HPV infection. As a vaccine to prevent cervical cancer, HPV vaccines have been gaining momentum in recent years, but various questions about HPV vaccines are also endless.
Generally, most women who are infected with HPV are asymptomatic. The virus will be cleared by the body's own immunity, but the older the person, the lower the possibility of being cleared by the body's immunity. If the infection continues, it will evolve into cervical cancer after 10-20 years! Therefore, HPV vaccination is also of positive significance for the prevention of these cancers, but many people still have concerns about HPV vaccines:
1, how does the HPV vaccine work. The
vaccine induces antibodies in our body. The antibodies penetrate the blood vessel wall and reach a higher concentration on the local epithelial tissue. When the HPV virus contacts the basal cells, the antibodies located in the epithelial tissues bind to the HPV virus, and thus play a role.
2, injection of HPV vaccine will people be infected with HPV virus. The HPV virus-like particles of
as a vaccine do not contain viral DNA, but retain immunity, so the HPV vaccine is not infectious. What is the difference between
3, bivalent, quadrivalent and ninth-valent vaccines. There are one or two hundred subtypes of
HPV, which are divided into high, medium and low risk types, among which high risk types include type 16 and type 18. Cervical cancer is mainly caused by them. The higher the "valence" number, the more types of viruses that can be prevented. Of course, there are still some differences in the data of antibodies produced by different ages. The antibodies produced by vaccination in younger age groups are higher than those in older age groups.
4. What are the adverse reactions of HPV vaccine? The adverse reactions of
after vaccination with HPV vaccine are generally not very big. A small number of people will experience local pain, redness, swelling, whole body fever, fatigue, muscle pain, headache and other adverse reactions, which usually disappear within a few days.
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