CDC Study Links Thimerosal in Vaccines to Motor/Phonic Tics and Deficits in Attention, Behavior Control, Verbal IQ

Friday, October 5, 2007 General News J E 4
The NationalAutism Association (NAA) says that a CDC study of only 1047 participants, lowcompliance rate, and very little data variation -- limitations that wouldordinarily bar publication in any reputable journal -- appears to misinformthe public. They question how such a poor quality study and misleadingconclusion can be published in the New England Journal of Medicine (NEJM).

The research conclusion states that findings couldn't support a causalassociation between early exposure to mercury from thimerosal-containingvaccines and neuropsychological functioning. Yet the data in the body of thepaper clearly states a statistically significant relationship betweenthimerosal and a host of co-morbid disorders frequently seen in autism,replicating earlier CDC findings published in the Nov. 2003 journalPediatrics.

Contradicting its own conclusion, the NEJM paper states (pgs. 1284-85,1290) that higher exposure to mercury was associated with:

The study's interpretive outcome and favorable results towards the CDC andvaccine makers might be explained by the exhaustive list of conflicts ofinterests disclosed by study authors (pg. 1291). "The CDC sets vaccine policyand has ties to vaccine makers, lending bias to any studies they conductregarding potential vaccine injuries," said NAA board member Scott Bono. "Howcan Americans expect them to rule against their own policy that advocatesinjecting excess amounts of a known neurotoxin into children?"

Also, NAA believes that the low compliance rate of 30%, starkly lower thanthe usual 70% rate in scientific research, might reflect public distrust ofthe CDC and vaccine safety.

Sallie Bernard, co-founder and executive director of SafeMinds, is adissenting panel member and the only consumer representative of the study.More commentary on the study can be found at To readthe study, go to

Some vaccines and most flu shots still contain a toxic mix of mercury andaluminum.-- significantly poorer performance on tests of backward recall -- behavioral regulation problems and a higher likelihood of motor and phonic tics -- lower verbal IQ scores -- speech articulation problems

SOURCE National Autism Association


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