part 1 Thiomersal controversy about vaccines mercury-based thiomersal contribute autism Video

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http://www.archive.org/details/ThiomersalContraversyWikipediaVideo

http://en.wikipedia.org/wiki/Thiomersal_controversy
Thiomersal controversy
The thiomersal controversy describes claims that vaccines containing the mercury-based preservative thiomersal contribute to the development of autism and other brain development disorders.[1] The current scientific consensus is that no convincing scientific evidence supports these claims.[2] [3] Thiomersal, also spelled thimerosal, is an organomercury compound used as a preservative in vaccines since the 1930s to prevent bacterial and fungal contamination.[4] [5] In July 1999, following a review of mercury-containing food and drugs, the Centers for Disease Control (CDC) and the American Academy of Pediatrics (AAP) asked vaccine makers to remove thiomersal from vaccines as quickly as possible as a purely precautionary measure, and it was rapidly phased out of most U.S. and European vaccines.[6] [7] Many parents mistook the action to remove thiomersal as indicating that the preservative was harmful, leading to this controversy that has diverted attention and resources away from other efforts to find the causes of autism.[2] This controversy has also been perpetuated by the efforts surrounding and promoting thousands of lawsuits filed in the U.S. to seek damages from alleged toxicity from vaccines, including those purportedly caused by thiomersal.[6] [8] Major scientific and medical bodies such as the Institute of Medicine and World Health Organization[9] as well as governmental agencies such as the Food and Drug Administration[4] and the CDC[10] —rejects any role for thiomersal in autism or other neurodevelopmental disorders. Multiple lines of scientific evidence have been cited to support this conclusion: for example, the clinical symptoms of mercury poisoning differ significantly from those of autism.[11] Most conclusively, eight major studies (as of 2008) examined the effect of reductions or removal of thiomersal from vaccines. All eight demonstrated that autism rates failed to decline despite removal of thiomersal, arguing strongly against a causative role.[12] [13] [14] [15] [16] [17] [18] [19]

Background of controversy
Scientific background
After the FDA Modernization Act of 1997 mandated a review and risk assessment of all mercury-containing food and drugs, vaccine manufacturers responded to FDA requests to provide detailed information about the thimerosal content of their preparations in December 1998 and April 1999.[20] Upon conclusion of this review, the FDA, in conjunction with the other members of the US Public Health Service (USPHS), the National Institutes of Health (NIH), CDC and Health Resources and Services Administration (HRSA) in a joint statement with the American Academy of Pediatrics (AAP), concluded: "Our review revealed no evidence of harm caused by doses of thimerosal found in vaccines, except for local hypersensitivity reactions. At the time of our review, vaccines containing thimerosal as a preservative could expose infants to cumulative mercury at levels that exceed EPA recommendations during the first 6 months of life. The clinical significance of this conclusion is not currently known; EPA guidelines contain as much as a 10-fold safety factor and such guidelines are meant to be starting points for the evaluation of mercury exposure. However, reducing exposure to thimerosal from vaccines is merited given the goal of reducing human exposure to mercury from all sources, the feasibility of removing thimerosal as a vaccine preservative, and the desirability of ensuring public confidence in the safety of vaccines."[21] The FDA noted that while the vaccination schedule at that time might have exceeded EPA standards for mercury exposure during the first 6 months of life, it did not exceed those of the FDA, Agency for Toxic Substances and Disease Registry (ATSDR), or WHO. The FDA also noted difficulty interpreting toxicity of the ethylmercury in thiomersal because guidelines for mercury toxicity were based primarily on studies of methylmercury, a different mercury compound with different toxicologic properties. Despite the lack of convincing evidence of toxicity of

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BobForehead: "an error has occured"

BobForehead: Hadn't planned on it, but now i am. That was what happened both times i tried to watch it, a black screen with that message. (I'm d/l'n the vid from your link tho, thnx).

h4ck3rm1k3: Thanks for your interest. I am sorry to overreact. It is very rare that people like my videos, so i am sceptical to comments. Please do continue to watch and comment. All the best for the holidays.

BobForehead: No apology needed; this is your space and you asked what many would think is a more than reasonable question given my penchant for extreme silliness. I could see folks generally given ya the high road, tho; too much actual information and all... but yeah; i will, thanks! (You're playlisting your stuff yourself, right? you'd be pleasantly pop-eyed to see how many people view playlists...)

Author: h4ck3rm1k3; Uploaded: Oct 26, 2009; Duration: 6:44; Views: 116

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