in recent years, the number of women with cervical cancer in China has been soaring, causing concern. Cervical cancer is the second most common cancer among Chinese women aged 15 to 44, with about 130000 new cases per year. Every year, China accounts for more than 28% of cervical cancer cases in the world. For women, we must prevent cervical cancer, so vaccination is a very effective means of prevention, so when is the best age for cervical cancer vaccination?
Human papillomavirus (HPV) infection is the main cause of cervical cancer. HPV vaccination will provide strong protection for the majority of women at risk of HPV infection.
The Hong Kong Department of health has relaxed the age of HPV vaccination to over 45
With the further study of HPV vaccine, the protection period of the vaccine is also being relaxed. For example, the Hong Kong Department of health has extended the age of application of the 4-valent vaccine to 45 years in 2010, saying that the 4-valent vaccine and 9-valent HPV vaccine have proved their ideal protection effect for women aged 24-45 years through large-scale clinical research. Similarly in Australia, the FDA has extended the age of vaccine use to 45.
Age limit of HPV cervical cancer vaccine in Hong Kong: both men and women over 9 years old can receive HPV vaccine routinely.
9-26 years old without sexual contact is the best. It has been suggested by sexual contacts to do HPV DNA typing to see if they are infected with HPV. Even if they are infected with a small number of high-risk HPV viruses, they need to be vaccinated against other high-risk types of infection.
HPV vaccination is also recommended for men over the age of 9. It can prevent anus cancer, penis cancer, condyloma acuminatum herpes and other diseases caused by HPV virus.
Precautions for HPV vaccination:
1. Anaphylaxis of jiaweimiao (G4), jiaweimiao (G9), huiyankang (C2)
2. Having an allergy record to any of the ingredients in a cervical cancer vaccine
3. Patients with bleeding problems, such as DIC, tip, 20000 / mm3 (spontaneous bleeding) or those who can't vaccinate their arms (such as the arms of patients with breast cancer after recovery)
4. People with special disease, history of drug and food allergy, abnormal immune function, egg, protein or allergic reaction should not be vaccinated
5. People allergic to bread, milk, yeast and cheese should not be vaccinated
6. People with high fever (37.8 or more)
7. Pregnant women or planned pregnant women should not be vaccinated
8. Women with cervical cancer or precancerous lesions should not be vaccinated
9. For lactating women, arrange vaccination after weaning
10. The patients with precancerous lesions of vulva should not be inoculated
Understanding of bivalent, tetravalent and ninvalent HPV vaccines
1. Bivalent cervical cancer vaccine
Cervarix is a cervical cancer vaccine developed specifically for human papillomavirus types 16 and 18. HPV types 16 and 18 are the most common cause of cervical cancer, up to 70%.
2、 Tetravalent cervical cancer vaccine
Gardasil can prevent cervical cancer, vaginal cancer, vulvar cancer and venereal condyloma (cauliflower) caused by human papillomavirus 6, 11, 16, 18. Jiaweimiao mainly targets about 70% of cervical cancer.
3. Jiawei vaccine of cervical cancer
Gardasil 9 can prevent cervical cancer, cervical precancerous lesion, vulvar cancer, precancerous lesion of vulva, vaginal cancer, precancerous lesion of vagina, anal cancer and venereal condyloma (cauliflower) caused by human papillomavirus. In addition to the four virus types of 6, 11, 16 and 18 that jiaweimiao could have prevented, 9-valent jiaweimiao has newly added 31, 33, 45, 52 and 58. A total of 9 types of viruses are estimated to cause 90% of cervical cancer worldwide.