Adequate treatment of PTT requires skilled histopathologic examination for proper diagnosis; histologic appearance may not correlate with clinical behavior. After surgical excision, long-term clinical follow-up for evidence of metastatic disease is judicious.

The detection of VZV DNA in the serum and peripheral blood mononuclear cells of all 25 zoster patients documents that viremia is a common manifestation of herpes zoster. Sorivudine cream appears to be a safe and well-tolerated adjuvant therapy; however, further phase 2 studies are needed to determine its clinical efficacy for the treatment of herpes zoster. Trials registration. ClinicalTrials.gov identifier: NCT00652184.

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Cervical and other cancers linked to the human papillomavirus (HPV) are a cause of significant morbidity and mortality. Since the discovery of HPV as a cause of these cancers, there has been much research and development in the field of HPV vaccination. Two current prophylactic vaccines have proved highly effective in preventing disease because of the vaccine types. Recent advances in prophylactic and therapeutic vaccines are discussed.

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