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 2015 flu vaccine available under the National Immunisation Program is a trivalent vaccine. That means it protects against three strains of flu, two A strains and one B strain.A quadrivalent influenza vaccine is also be available through the private market.The quadrivalent vaccine is expected to be at least as effective as the trivalent vaccine, and may offer additional benefit through protection against an additional influenza B strain.he 2015 flu vaccine available under the National Immunisation Program is a trivalent vaccine. That means it protects against three strains of flu, two A strains and one B strain.