High risk hpv virus types

Similarly, when high-risk HPV lingers and infects the cells of the vulva, vagina, penis, or anus, it can cause cell changes called precancers.

These cancers are much less common than cervical cancer. Much less is known about how many people with HPV will develop cancer in these areas. Cervical cancer is the most common HPV-associated cancer, and some cancers of the vulva, vagina, penis, anus, and oropharynx back of the throat, including the base of the tongue and tonsils are also caused by HPV.

HPV can infect the mouth and throat and cause cancers of the oropharynx. This is called oropharyngeal cancer. Vaccines protect against the types of HPV that most often cause cervical, vaginal, vulvar, and anal precancers and cancers.

Cervical cancer also can be prevented or found early through regular screening and follow-up treatment. In fact, most sexually active people contract HPV at some point in their lives.

The virus spreads easily through skin-to-skin sexual contact. More than 90 percent of all new HPV infections go away or become undetectable within two years, even without treatment.

Yet some HPV infections can stay in the body and lead to complications, including genital warts. These warts may be small or large, flat or raised; they may emerge singly or in a cluster and be cauliflower-shaped. HPV infection may also cause more serious conditions, such as certain types of cancer. A person can be infected with more than one HPV strain at a time. Epidemiol Infect. Prevalence and genotyping of high risk human papillomavirus in cervical cancer samples from Punjab, Pakistan.

Human papillomavirus is a necessary cause of invasive cervical cancer worldwide. J Pathol. Robbins basic pathology. Philadelphia: Saunders; Functional significance of sequence variation in the E2 gene and the long control region of human papillomavirus type J Gen Virol. Pathogenesis of human papillomaviruses in differentiating epithelia. Microbiol Mol Biol Rev. J Med Virol. Are 20 human papillomavirus types causing cervical cancer? Seoud M. Burden of human papillomavirus-related cervical disease in the extendedmiddleEast and North Africa-a comprehensive literature review.

J Low Genit Tract Dis. PMID: ; doi Eur J Biochem. Joseph Sambrook DR. Molecular cloning: a laboratory manual. DNA extraction from paraffin embedded material for genetic and epigenetic analyses. J Vis Exp. Revised FIGO staging for carcinoma of the cervix. Int J Gynaecol Obstet. A correlation of immunohistochemical and molecular detection of human papilloma virussubtypes 16 and Int J Sci Res.

Prevalence of human papilloma virus subtypes 52,56,58,59 and 66 among Yemeni patients with cervical cancer. Egypt Acad J Biol Sci. Typespecific persistence of high-risk human papillomavirus infections in the new independent states of the former soviet union cohort study. Distribution of human papillomavirus among women with abnormal cervical cytology in Kuwait. Diagn Cytopathol. Mol Cell Probes. Support Center Support Center. External link. Please review our privacy policy. Cancer Health Disparities.

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