人乳头瘤病毒(HPV)是一类在自然界广泛存在的DNA病毒。人类感染HPV也十分普遍,感染率也很高。在自然人群中,HPV感染率从低于1%到高达50%,在性活跃人群中20%~80%以上的人有HPV感染史[1,2]。HPV感染可发生于各种年龄,从出生的婴儿到80岁以上年龄者均有HPV感染的报道。流行病学研 Human papillomavirus (HPV) is a type of DNA virus that is widespread in nature. Human infection with HPV is also very common, the infection rate is also high. In natural populations, HPV infection rates range from less than 1% to as high as 50%, with more than 20% to 80% of those with sexual activity having a history of HPV infection [1,2]. HPV infection can occur at all ages, from infants born to those over the age of 80 have reported HPV infection. Epidemiology research