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There are about 20 000 new cases of anal cancer per year globally, of which an estimated 90% are caused by human papillomavirus (HPV) infection. New research by scientists from the International Agency for Research on Cancer (IARC), published in The Lancet Infectious Diseases, characterizes the contribution of different oncogenic HPV types to the development of anal cancer, in HIV-negative men and women as well as in high-risk HIV-positive populations.
Dr Gary Clifford, a scientist in the Infections and Cancer Epidemiology Group at IARC, explains the key findings of the study. |