In Pictures: Americaâs Safest Cities. Henderson, Nev., takes the No. 2 spot despite its location within the Metropolitan Statistical Area of Las Vegas-Paradise, which ranked ninth this year on Forbesâ list of Americaâs Most Dangerous Cities.
Use in Cancer. Recombinant human papillomavirus (HPV) quadrivalent vaccine is approved to prevent some conditions caused by certain types of HPV. It is used in males or females aged 9 to 26 years to prevent the following: 1  Anal cancer.2  Cervical cancer. 3  Vaginal cancer.4  Vulvar cancer.ecombinant human papillomavirus (HPV) quadrivalent vaccine is approved to prevent some conditions caused by certain types of HPV. It is used in males or females aged 9 to 26 years to prevent the following: 1  Anal cancer. 2  Cervical cancer. 3  Vaginal cancer. 4  Vulvar cancer.
The trivalent vaccine (three different flu viruses) includes the most common Type B flu strain that is currently circulating, but the vaccine is only about 65% effective. I have had several vaccinated patients who still got the flu this season. So far, all have been Type A. Next year, we are promised a new and improve vaccine -- a quadrivalent one (four types). This answer should not be considered medical advice... This answer should not be considered medical advice and should not take the place of a doctorâs visit.