The background and pro and con arguments were written by staff based upon input from the following footnotes (directly referenced) and sources (used for general research and not directly referenced):
  1. CDC, "School Vaccination Requirements, Exemptions and Web Links,", July 21, 2011

  2. Children’s Hospital of Philadelphia, "All Timelines Overview," (accessed July 30, 2014)

  3. University of Massachusetts Medical School, "History of MassBiologics of the University of Massachusetts Medical School," (accessed July 30, 2014)

  4. Daniel A. Salmon, "Mandatory Immunization Laws and the Role of Medical, Religious and Philosophical Exemptions,", Oct. 2003

  5. Children’s Hospital of Philadelphia, "Government Regulation,", Jan. 27, 2014

  6. James G. Hodge, Jr. and Lawrence O. Gostin, "School Vaccination Requirements: Historical, Social, and Legal Perspectives as of February 15, 2002: A State of the Art Assessment of Law and Policy,", Feb. 15, 2002

  7. Robert M. Wolfe, "Anti-Vaccination Activists, Past and Present," British Medical Journal, Aug. 24, 2002

  8. "Opposed to Vaccination," New York Times, Feb. 17, 1882

  9. Congressional Research Service, "Mandatory Vaccinations: Precedent and Current Laws,", Jan. 18, 2005

  10., "The Nobel Prize in Physiology or Medicine 1901," (accessed July 31, 2014)

  11. Zucht v. King, United States Supreme Court, Nov. 13, 1922

  12. College of Physicians of Philadelphia, "The History of Vaccines: Timelines, Diseases and Vaccines," (accessed June 25, 2014)

  13. CDC, "Reported Cases and Deaths from Vaccine Preventable Diseases, United States, 1950-2011,", Mar. 14, 2012

  14. "National Childhood Vaccine Injury Act of 1986 (42 USC 201)," (3MB) Federal Register, Nov. 14, 1986

  15. Stephen Engelberg, "Vaccine: Assessing Risks and Benefits," New York Times, Dec. 19, 1984

  16. US Court of Federal Claims Office of Special Masters, "Vaccine Program Background," (accessed Dec. 11, 2009)

  17. US Department of Health and Human Services, "National Vaccine Injury Compensation Program,” (accessed Aug. 4, 2014)

  18. Vaccine Adverse Event Reporting System, "About the VAERS Program," (accessed Aug. 4, 2014)

  19. "Comprehensive Child Immunization Act of 1993," (118 KB) Federal Register, Nov. 4, 1993

  20. Andrew Wakefield, SH Murch, A. Anthony, et al., "RETRACTED: Illeal-Lymphoid-Nodular Hyperplasia, Non-Specific Colitis, and Pervasive Developmental Disorder in Children,", Feb. 1998

  21. CNN Wire Staff, "Retracted Autism Study an 'Elaborate Fraud,' British Journal Finds,", Jan 5,

  22. Simon H. Murch, Andrew Anthony, David H. Casson, et al., "Retraction of an Interpretation,", Mar. 6, 2004

  23. Lancet Editors, "Retraction—Ileal-Lymphoid-Nodular Hyperplasia, Non-Specific Colitis, and Pervasive Developmental Disorder in Children,", Feb. 6, 2010

  24. Fiona Goodlee, Jane Smith, and Harvey Marcovitch, "Wakefield's Article Linking MMR Vaccine and Autism Was Fraudulent,", Jan. 6, 2011

  25. Maria Cheng, "Britain Bans Doctor Who Linked Autism to Vaccine," Associated Press, May 24, 2010

  26. Centers for Disease Control (CDC), "Thimerosal in Vaccines: A Joint Statement of the American Academy of Pediatrics and the Public Health Service," (40 KB), July 9, 1999

  27. US House of Representatives Committee on Government Reform Subcommittee on Human Rights and Wellness, "Mercury in Medicine - Taking Unnecessary Risks," (259 KB), May 2003

  28. Robert F. Kennedy, Jr., "Deadly Immunity,", Feb. 24, 2005

  29. US Senate Committee on Health, Education, Labor and Pensions, "Thimerosal and Autism Spectrum Disorders: Alleged Misconduct by Government Agencies and Private Entities," (64 KB), Sep. 2007

  30. Institute for Vaccine Safety, "Thimerosal Table," (62 KB), Nov. 30, 2009

  31. Cedillo v. Secretary of Health and Human Services, United States Court of Appeals for the Federal Circuit, Aug. 27, 2010

  32. Bruesewitz v. Wyeth, (377 KB) United States Supreme Court, Feb. 22, 2011

  33. Kathleen Stratton, Andrew Ford, Erin Rusch, and Ellen Wright Clayton, "Adverse Effects of Vaccines: Evidence and Causality,", Aug. 25, 2011

  34. Institute of Medicine (IOM), "Report Brief - Adverse Effects of Vaccines: Evidence and Causality,", Aug. 25, 2011

  35. V. Demicheli, A. Rivitti, M. G. Deblani, and C. Di Pietrantonj, "Using the Combined Vaccine for Protection of Children Against Measles, Mumps, and Rubella,", Feb. 15, 2012

  36. John Hinton, "Nearly 750 Local Students Who Lack Required Whooping Cough Vaccination Face Suspension,", Sep. 23, 2013

  37. WLWT, "No School Recommended for Unvaccinated Kids,", Apr. 16, 2014

  38. Amanda Marcotte, "A Great Ruling for Public Health and a Big Blow to the Anti-Vaccination Movement,", June 25, 2014

  39. Dan Childs, "No School for You! Unvaccinated Students Shut Out,", Sep. 16, 2011

  40. Benjamin Mueller, "Judge Upholds Policy Barring Unvaccinated Students during Illnesses,", June 22, 2014

  41. Sydney Spiesel, "I'm a Pediatrician. Should I Treat All Kids, or Just the Vaccinated Ones?,", Mar. 17, 2014

  42. Arthur L. Caplan, David Hoke, Nicholas J. Diamond, and Viktoriya Karshemboyem, "Free to Choose but Liable for the Consequences: Should Non-Vaccinators Be Penalized for the Harm They Do?,”", Fall 2012

  43. American Academy of Pediatrics, "Vaccine Safety: The Facts,", 2008

  44. [email protected], "The Solution: Vaccines," (accessed June 4, 2014)

  45. Bahar Gholipour, "Vaccination Has Saved 732,000 Children's Lives Since 1994, Says Report,", Apr. 25, 2014

  46. Kelley King Heyworth, "Vaccines: The Reality behind the Debate," (accessed June 9, 2014)

  47. FDA, "Thimerosal in Vaccines,", Mar. 14, 2014

  48. CDC, "Frequently Asked Questions about Vaccine Safety,", Feb. 27, 2014

  49. CDC, "Possible Side-Effects from Vaccines,", Feb. 4, 2014

  50. Nancy Shute, "Report: Vaccines Are Safe, Hazards Few and Far Between,", Aug. 25, 2011

  51. US Department of Health and Human Services, "Safety," (accessed June 5, 2014)

  52. Matthew Herper, "Dear Jenny McCarthy, Here's How Many Lives Could Be Saved Cheaply by Making Vaccines More Widely Available,", Apr. 16, 2014

  53. WHO, "Vaccine Position Papers," (accessed June 5, 2014)

  54. Public Health Agency of Canada, "Vaccine Safety: Frequently Asked Questions,", Apr. 28, 2014

  55. Canadian Paediatric Society, "Vaccine Safety,", Nov. 2013

  56. National Foundation for Infectious Diseases, "Top Reasons to Get Vaccinated," (accessed June 5, 2014)

  57. American Medical Association, "AMA Encourages Community-Clinical Partnerships to Increase Use of Preventative Health Services among Boomers,", Nov. 19, 2009

  58. American Academy of Family Physicians, "Confusion, Safety Concerns Contribute to Low Seasonal Flu Vaccine Coverage among Pregnant Women,", Aug. 4, 2009

  59. WHO, "What Are Some of the Myths – and Facts – about Vaccination?,", Apr. 2013

  60. Kathleen Dohenny, "Expert Q&A: Childhood Vaccine Safety," (accessed June 4, 2014)

  61. US Department of Health and Human Services, "Community Immunity ('Herd Immunity')," (accessed June 5, 2014)

  62. Steven L. Weinreb, "For the Herd’s Sake, Vaccinate,", Dec. 27, 2011

  63. David E. Sugerman, et al., "Measles Outbreak in a Highly Vaccinated Population, San Diego, 2008: Role of the Intentionally Undervaccinated," Pediatrics, Apr. 1, 2010

  64. Mark Fishetti, "Too Many Children Go Unvaccinated,", May 14, 2013

  65. Gardiner Harris, "5 Cases of Polio in Amish Group Raises New Fears,", Nov. 8, 2005

  66. Steven F. Hirsch, "Protecting the 'Herd': Why Vaccinations Still Matter,", Aug. 2007

  67. CDC, "Five Important Reasons to Vaccinate Your Child,", Apr. 8, 2011

  68. Michael Smith, "How Long Should Children Stay out of School after H1N1 Flu?,", Nov. 4, 2009

  69. CDC, "CDC Study: Treating Children's Flu Illness Costly,", May 21, 2012

  70. North Dakota Department of Health, "What Do I Need to Know? Rotavirus,", Feb. 2006

  71. US Department of Health and Human Services, "The Affordable Care Act and Immunization,", Jan. 20, 2012

  72. CDC, "About Rubella,", Apr. 29, 2011

  73. College of Physicians of Philadelphia, "1941: Rubella Implicated in Congenital Defects," (accessed June 6, 2014)

  74. CDC, "Smallpox Disease Overview,", Dec. 30, 2004

  75. Walter Orenstein, "Opening Session: An Overview of Vaccinology,", Nov. 15-17, 2013

  76. CDC, "Vaccine-Preventable Childhood Diseases,", Feb. 25, 2012

  77. Polio Global Eradication Initiative, "Polio This Week as of 4 June 2014,", June 4, 2014

  78. CNN Staff, "Ohio Measles Outbreak Continues to Grow,", June 5, 2014

  79. CDC, "Measles,", June 10, 2014

  80. David Satcher, "Statement on Risk vs Benefit of Vaccinations by David Satcher, M.D., PH.D.,", Aug 3, 1999

  81. Mark Wilson, "How Just 3 Vaccines Can Save Us $63 Billion [Infographic],", June 14, 2012

  82. Joseph M. Mercola, "Vaccines Have Serious Side Effects – The Institute of Medicine Says So!,", Sep. 27, 2011

  83. National Vaccine Information Center, "Autism," (accessed June 11, 2014)

  84. Robert W. Sears, "New Study Shows Possible Link between Environmental Mercury and Autism – What about Vaccine Mercury?," (accessed June 11, 2014)

  85. Robert W. Sears, "Vaccine FAQS: Aluminum Information from The Vaccine Book," (accessed June 11, 2014)

  86. VaxTruth, "Vaccine Ingredients – A Comprehensive Guide,", Aug. 15, 2011

  87. CDC, "Ingredients of Vaccines – Fact Sheet," Feb. 22, 2011

  88. Jospeph M. Mercola, "MSG: Is This Silent Killer Lurking in Your Kitchen Cabinets,", Apr. 21, 2009

  89. National Vaccine Information Center, "Barbara Speaks Out!," (accessed June 11, 2014)

  90. Ron Paul, "Government Vaccines—Bad Policy, Bad Medicine,", Dec. 10, 2002

  91. Cornell University Law School Legal Information Institute, "First Amendment," (accessed June 11, 2014)

  92. Oyez, "Cantwell v. State of Connecticut," (accessed June 11, 2014)

  93. Mahesh Vidula, "Individual Rights vs. Public Health: The Vaccination Debate," (accessed June 11, 2014)

  94. Olivia K. Wenger, et al., "Underimmunization in Ohio's Amish: Parental Fears Are a Greater Obstacle Than Access to Care,", June 27, 2011

  95. Fraternitas Rosae Crucis, "The Church of Illumination: Tenet on Vaccination and Immunization,", 2013

  96. Universal Family Church, "FAQ," (accessed June 11, 2014)

  97. Vatican, "Moral Reflections on Vaccines Prepared from Cells Derived from Aborted Human Foetuses,", June 9, 2005

  98. Children’s Hospital of Philadelphia, "General Vaccine Safety Concerns,", Apr. 2013

  99. Mayo Clinic, "Childhood Vaccines: Tough Questions, Straight Answers,", May 8, 2013

  100. Kurt Perkins, "Dr. Kurt: Why I Will Never Choose to Vaccinate My Own Son and Any Future Kids My Wife and I Have,", June 12, 2014

  101. A Shot of Truth, "Congressman Bill Posey Speaks on the Need for Openness and Transparency within the CDC on Issues of Vaccine Safety,", Apr. 8, 2014

  102. Institutes of Medicine, "Julie Gerberding," (accessed Aug. 7, 2014)

  103. Gregory Poland, "Vaccines against Lyme Disease: What Happened and What Lessons Can We Learn?,", Feb. 1, 2011

  104. L. Simonsen, C. Viboud, A. Elixhauser, R.J.Taylor, and A.Z. Kapikian, "More on Rotashield and Intussusception: The Role of Age at the Time of Vaccination," Journal of Infectious Diseases, 2005

  105. CDC, "Keeping the U.S. Polio-Free,", Mar. 19, 2014

  106., "Chickenpox,", Sep. 2012

  107. CDC, "Measles Overview,", June 3, 2014

  108., "Measles,", Oct. 2011

  109., "About Rubella,", July 2012

  110. CDC, "About Rotavirus: Symptoms,", May 12, 2014

  111. WebMD, "Rotavirus – Topic Overview,", July 9, 2012

  112., "Correcting our Record,", Jan. 16, 2011

  113. Sanjay Gupta, "Dr. Sanjay Gupta: Vaccines Are a Matter of Fact,", Feb. 5, 2015

  114. Bharathi S. Gadad, "Administration of Thimerosal-Containing Vaccines to Infant Rhesus Macaques Does Not Result in Autism-Like Behavior,", Oct. 6, 2015

  115. Melissa Healy, "Old-School and Current Vaccines Have No Link to Autism (again), Study Says,", Sep. 28, 2015

  116. Maggie Fox, "Measles Has Been Eliminated in the Americas, WHO Says,", Sep. 27, 2016

  117. Michelle Goldstein, "10 Reasons Not to Vaccinate,", Dec. 12, 2014

  118. Pan American Health Organization, "Americas Region Declared the World's First to Eliminate Rubella,", Apr. 29, 2015

  119. History of Vaccines, "Disease Eradication," History of Vaccines website, Jan. 25, 2016

  120. History of Vaccines, "History of Polio (Poliomyelitis)," History of Vaccines website, Mar. 10, 2016

  121. CDC, "Instant Childhood Immunization Schedule,", Feb. 1, 2016

  122. Anders Hviid, et al., "Measles, Mumps, Rubella Vaccination and Autism: A Nationwide Cohort Study,", Mar. 5, 2019


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