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apotheke zur rose HPV Infection Rate Down After Vaccine ApprovalThe prevalence of infection with cancer-causing strains of human papillomavirus (HPV) declined among women during the period that coincided with the introduction of HPV vaccine, investigators reported here. The rates of infection with HPV 16 and HPV 18 have declined since July 2007, a year after the first vaccine was introduced, including a significant decrease in HPV 16 infection (P=0.0012). Four other HPV subtypes, including the other two targeted by the quadrivalent vaccine (Gardasil), also declined significantly. Overall, the rate of infection with any HPV subtype has decreased since mid-2007 among, according to HPV test results for 57,262 women. Because the womens vaccination status was unknown, the decline could not be linked definitively to the vaccines, Elizabeth Dickson, MD, said at the Society of Gynecologic Oncology meeting.