Evidence Indicates Vaccines linked with Type I Diabetes
Adding more to the controversy.
A study done by immunologist Bart Classen, with co-author David Classen, showed that Hib vaccine, pertussis, MMR and BCG vaccines can cause Type I Diabetes two or more years after they are injected. This study was published in 2003 in the Journal of Pediatric Endocrinology and Medicine. A previous study published in the British Medical Journal showed that children injected with four doses of the HiB vaccine had a 26% increase in the incidence of Type I diabetes.
Hemophilus influenza is a bacteria that can cause serious pneumonia or meningitis. The vaccine is reported to protect 7-26 per 100,000 children from permanent disability related to meningitis. Despite this, Classen and Classen said “we believe that the public has the right to know that data indicate that the increased risk of diabetes associated with the Hemophilus and other vaccines appears to exceed the benefit of these vaccines”.
“Research into immunisation has been based on the theory that the benefits of immunisation far outweigh the risks from delayed adverse events and so long term safety studies do not need to be performed. When looking at diabetes-only one potential chronic adverse event-we found that the rise in the prevalence of diabetes may more than offset the expected decline in long term complications of H. influenzae meningitis,” explained Classen and Classen.
“We believe that the public should be fully informed that vaccines, though effective in preventing infections, may have long term adverse effects. An educated public will probably increasingly demand proper safety studies before widespread immunisation. We believe that the outcome of this decision will be the development of safer vaccine technology.”
1. Classen JB and Classen DC, Clustering of cases of type 1 diabetes mellitus occurring 2-4 years after vaccination is consistent with clustering after infections and progression to type 1 diabetes mellitus in autoantibody positive individuals. HYPERLINK “www.ncbi.nlm Pediatr Endocrinol Metab. 2003 Apr-May;16(4):495-508. 2. Classen, JB and Classen DC, “Vaccines and the risk of insulin-dependent diabetes (IDDM): potential mechanism of action”, Med Hypotheses. 2001 Nov;57(5):532-8. 3. Classen, JB and Classen DC, “Association between type 1 diabetes and hib vaccine: Causal relation is likely”, BMJ. 1999 Oct 23;319(7217):1133. 4. Classen, JB and Classen DC, “Immunization in the first month of life may explain decline in incidence of IDDM in The Netherlands”, Autoimmunity 1999;31(1):43-5 5. Classen, JB and Classen DC, “Clustering of cases of insulin-dependent diabetes (IDDM) occurring three years after hemophilus influenza B (HiB) immunization support causal relationship between immunization and IDDM”, Autoimmunity 2002;35(4):247-253. 6. Classen, JB and Classen DC, “Hemophilus vaccine associated with increased risk of diabetes: causality likely”, Diabetes Care. 2000 Jun;23(6):872-3. 7.Classen, JB and Classen DC, “Public should be told that vaccines may have long term adverse effects”, BMJ. 1999 Jan 16;318(7177):193.