Vaccination programs have reduced the incidence of many diseases / Centers for Disease Control and Prevention -- Opposition to vaccines has existed as long as vaccination itself / The history of vaccines, The College of Physicians of Philadelphia -- The benefits of vaccination outweigh the risks / The Children's Hospital of Philadelphia Vaccine Education Center -- Evidence does not show that benefits of vaccination outweigh the risks / Neil Z. Miller -- Evidence shows vaccines unrelated to autism / Immunization Action Coalition -- The anti-vaccine movement endangers the disabled / David M. Perry -- Parents who don't vaccinate children make us sick / Amity Shlaes -- The anti-vaccine movement is given false equivalence by the media / Katrina vanden Heuvel -- State vaccination requirements usually allow exemptions / Ben Kleifgen and Justin Silpe -- People should not be allowed to refuse vaccinations / Ronald Bailey -- Should you get the HPV vaccine? / Jake Blumgart -- HPV vaccine should require parental consent / Wesley J. Smith -- An HIV vaccine is crucial to attaining an AIDS-free generation / Anthony S. Fauci -- A new HIV vaccine shows promise--but it won't be a silver bullet / Mark Joseph Stern.