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Human papillomavirus infection ( HPV infection) is caused by a DNA virus from the Papillomaviridae family. [5] Many HPV infections cause no symptoms and 90% resolve spontaneously within two years. [1] In some cases, an HPV infection persists and results in either warts or precancerous lesions. [2] These lesions, depending on the site affected ...
Alefpapillomavirus. Papillomaviridae is a family of non- enveloped DNA viruses whose members are known as papillomaviruses. [1] Several hundred species of papillomaviruses, traditionally referred to as "types", [2] have been identified infecting all carefully inspected mammals, [2] but also other vertebrates such as birds, snakes, turtles and fish.
22,000 cases globally (2008) [1] [2] Human papillomavirus-positive oropharyngeal cancer ( HPV-positive OPC or HPV+OPC ), is a cancer ( squamous cell carcinoma) of the throat caused by the human papillomavirus type 16 virus (HPV16). In the past, cancer of the oropharynx (throat) was associated with the use of alcohol or tobacco or ...
Laryngeal papillomatosis is caused by human papillomavirus (HPV) infection, most frequently types 6 and 11, although genotypes 16, 18, 31, and 33 have also been implicated. HPV-11 is associated with more aggressive forms of papillomatosis, which may
Oropharyngeal cancer has been linked in some cases to HPV. The most common type (indicated in about 90%) of oral and oropharyngeal cancer is squamous cell carcinoma. [5] Approximately 63% of oropharyngeal squamous cell carcinomas each year are associated with HPV infection. [1]
Most viral warts are caused by human papillomavirus infection (HPV), of which there are nearly 200 distinct human papillomaviruses (HPVs), and many HPV types are carcinogenic. [2] [3] There are, however, a number of other conditions that cause papilloma, as well as many cases in which there is no known cause.
Vaccines that protect against more of the types common in cancers would prevent more cancers, and be less subject to regional variation. [79] For instance, a vaccine against the seven types most common in cervical cancers (16, 18, 45, 31, 33, 52, 58) would prevent an estimated 87% of cervical cancers worldwide.
