The Papillomavirus article covers the general biological features of human and animal papillomaviruses. Human papillomavirus (HPV) is a virus from the papillomavirus family of viruses that is capable of infecting humans. Like all papillomaviruses, HPVs establish productive infections only in keratinocytes of the skin or mucous membranes. While the majority of the nearly 200 known types of HPV cause no symptoms in most people, some types can cause warts (verrucae), while others can – in a minority of cases – lead to cancers of the cervix, vulva, vagina, and anus in women or cancers of the anus and penis in men. It can also cause cancers of the head and neck (tongue, tonsils and throat). Recently, HPV has been linked with an increased risk of cardiovascular disease.