Human Papillomavirus ( Hpv ) Essay

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According to the U.S. Centers for Disease Control and Prevention (CDC), we know that Human papillomavirus (HPV) is a kind of severe sexually transmitted infection (STI) and it is so common that the majority of sexually active people may infect HPV during their lives. The majority of HPV infections cause no severe symptoms and can be resolved spontaneously in two years. But some of them preserve and lead to premalignant condition or warts. The premalignant condition will increase the danger of several kinds of cancers, such as the cervix cancer, vulva cancer, vagina cancer, mouth cancer and throat cancer. According to the information from the CDC and WHO, HPV16 and HPV18 are two kinds of high risk HPVs, which may cause cervical cancer among women; HPV6 and HPV11 are considered to be the common causes of genital warts and respiratory papillomatosis.[2]
Introduction of HPV
A Brief Overview
Human papillomavirus (HPV) is a kind of DNA virus from the papillomavirus family. There are more than 150 types of HPV discovered till now. Over 40 types of them are transmitted by sex and infect the anus and genitals.[5] Early age of first sexual intercourse, poor immune function, smoking, and multiple partners are all high risk factors for Continual HPV infections [2] The major routes of transmission are continuous direct skin contact with anal sex or vaginal. Babies may get HPVs from their mother during pregnancy sometimes. People can be infected with several types of HPV in their

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