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J. Bart Classen : ウィキペディア英語版 | J. Bart Classen
John Barthelow Classen is an American immunologist and anti-vaccinationist. He received his M.D. from the University of Maryland, Baltimore in 1988, his M.B.A. from Columbia University in 1992 and obtained his medical license in October 1997. He is best known for publishing research concluding that vaccines, in particular the Hib vaccine, cause insulin-dependent diabetes mellitus, a hypothesis he proposed based on experiments he conducted on mice in 1996. His views are disputed and considered unverified. == Anti-vaccination views ==
Classen proposes that vaccines cause diabetes by causing the release of interferons, causing an autoimmune state leading to immune-mediated type 1 diabetes, and he is quoted on many anti-vaccine websites, such as that of the National Vaccine Information Center.〔(【引用サイトリンク】 title=Juvenile Diabetes and Vaccination: New Evidence for a Connection )〕 His work has been criticized by some, such as Amy Wallace, who wrote that the vaccine-diabetes link "...relies on the flawed work of one doctor (), who gathered data on a slew of vaccines and failed to follow standard study protocols. No other study — including those using the same data — could reproduce the results." Studies that have investigated the potential link between vaccines and diabetes include one, published by Frank DeStefano, which "did not find an increased risk of type 1 diabetes associated with any of the routinely recommended childhood vaccines." DeStefano ''et al.'' also noted that another study of over 100,000 children examined the potential connection between Hib vaccines and diabetes and found no association between the two. Similarly, the Australian National Centre for Immunisation Research and Surveillance examined Classen's studies and wrote that "Other researchers who have studied the issue have not verified Dr Classen’s findings."
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