問：防子宮頸癌疫苗

If you are referring to Gardasil, then the age group currently approved by the FDA is 9-26. I went to see my doctor last year about the vaccine and she told me the drug company did some studies on women age 27-40's and results were not approved by the FDA. Also, the vaccine only protects against 4 types of HPV that is associated with cervical cancer and genital warts. So even with the vaccine, there is no protection against other strains of HPV.

加衛苗 9-26歲, 卉妍康 10-25歲
最好打加衛苗, 佢系 4合一, 好過卉妍康 (2合一)
可問防癌天使

基本上沒有年齡限制, 重點是有冇感染啦,
無性經驗就一定未感染, 100% 有效,
但有性經驗也未必被感染, 總之打一定好過不打.