Infection with Human Papillomavirus: Update on Epidemiology, Diagnosis, and Treatment.

Human papillomavirus (HPV) infection is the most common sexually transmitted viral disease worldwide. Low-risk types of HPV (eg, HPV-6 and HPV-11) are the causative agents of genital warts, whereas high-risk types (eg, HPV-16 and HPV-18) have been associated with anogenital cancer, particularly cervical cancer. Cervical cancer remains the second most common cancer in women worldwide. Recent advances have led to a better understanding of how HPV causes cancer on a molecular level and of the immunologic response to HPV. Methods to detect HPV infection have been improved, and a new treatment method for genital warts has been developed. The production of empty capsids of HPV done using recombinant technology has led to the development of serologic assays for HPV. The empty capsids are now the basis of clinical trials of vaccines to prevent HPV infection and disease.