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.
Some children 6 months through 8 years of age require two doses of influenza vaccine. Children in this age group who are getting vaccinated for the first time, as well as some who have been vaccinated previously, will need two doses. The quadrivalent flu vaccine protects against four flu viruses; two influenza A viruses and two influenza B viruses. 2  The following quadrivalent flu vaccines are: 3  a standard dose quadrivalent shot. 4  One brand is approved for people 6 months and older while others are approved for those 3 years and older.