Which of the following statements is true of infection with human papilloma virus (HPV) types 6/11?
ExplanationThe percentage of infected patients who develop visible warts is unknown, but is definitely a small minority. Although homosexual men (MSM) are relatively more likely to get perianal warts, the majority of cases present in heterosexual men. The mode of inoculation is unclear. Liquid nitrogen destroys infected tissue but does not clear HPV infection. HPV types 6/11 are not associated with genital cancer – HPV types 16/18 are the most common oncogenic types. Cervarix vaccine only protects against HPV types 16/18; Gardasil also protects against types 6/11.
