Guest guest Posted April 27, 2004 Report Share Posted April 27, 2004 Upping the Autism Ante by Neil Munro National Journal - Washington, DC Issues & Ideas: Medicine 04-24-2004 Record numbers of children have been diagnosed with severe autism over the past few years, and many parents suspect that mercury-based preservatives in vaccines are the cause. Officials at the Centers for Disease Control and Prevention, which sets vaccination policies, have just released partial details of anew analysis that seems to exonerate the preservative. But parents and some scientists were quick to criticize the analysis. The details provided by the CDC are too vague, said Mark Blaxill, a board member of one parents' advocacy group, Safe Minds. " The thing we need is to get the right answer, not the answer that either side wants. " The stakes in this debate are high. If the parents' claims are correct, the CDC's vaccine policies over the past decade have caused autism in tens of thousands of children. Many thousands more may have suffered less-severe brain damage, the parents say. If their argument is scientifically validated, the careers of many vaccine professionals will be damaged, as will the financial health of some vaccine makers. If the parents and their allies are wrong, they are diverting attention from other, potentially better avenues of research. The growth in autism rates is difficult to track, but California’s Department of Developmental Services has the most-detailed data. In the first quarter of 2004, the state added 795 severely autistic children to its treatment program; the number of new patients was 173 during the same period in1994. That kind of growth has boosted the number of severely autistic children in the California system from 5,281 in 1994 to24,297 in 2004. The severely autistic have a normal lifespan but require lifetime support costing more than $1 million. According to the parents and some scientists, a mercury preservative, Thimerosal, which is used in many vaccines, has increased the incidence of autism. Thimerosal is still in use, and many infants received extra doses of it after 1990, when CDC officials recommended additional vaccinations. In response to growing concerns, CDC officials in June 1999asked companies to stop using Thimerosal in vaccines. They also conducted a study, results of which were published in the November 2003 issue of Pediatrics; the article said " no consistent significant associations were found " between the Thimerosal-containing vaccines and disorders such as autism. The study was based on a huge database maintained by HMOs on the West Coast. But the lead author of the article, Verstraeten, said recently that the article " does not state that we found evidence against an association, " and he also recommended additional study. Also, Mark Geier, a vaccine specialist in private practice who provides expert testimony for plaintiffs suing vaccine makers, conducted a study of the same database at the request of Rep. Dave Weldon, R-Fla. Geier's study tested the hypothesis that children who had received Thimerosal in all four shots of the combined diphtheria, tetanus, and pertussis vaccine were more likely to be autistic than those who got no Thimerosal in their four shots. Geier said his study revealed 10 times as many cases of autism among children given Thimerosal. " That's a very nice hypothesis ... [and the result] was very concerning to us, " researcher told a February meeting of the National Academy of Sciences. is aco-author of the CDC's article in Pediatrics. He is employed at the Center for Health Studies, a commercial research center that has contracted with the CDC to study vaccine safety. The research center also receives funding from vaccine makers. It is owned by Group Health ative, an HMO that provided part of the database for the CDC study. is also an untenured research professor at the University of Washington in Seattle. " We attempted to replicate [Geier's] analysis using the exact same data, " told the NAS audience, and discovered a rate of autism among children given Thimerosal 18 times greater than among those who received none. But because the children in Geier’s study were of various ages, he said, " we reanalyzed the data " to compensate for the differing ages. The new analysis showed " no statistical association " between Thimerosal and autism, said. But Blaxill says that 's analysis " is dramatically different " from the Geier study, partly because it includes many children too young to be identified as autistic. Children can be diagnosed as autistic before turning 3, but most diagnoses aren’t made until after age 3. declined to provide National Journal with a detailed description of his analysis, but the CDC e-mailed additional information about it showing that a high percentage of children in the analysis were underage 2. Geier said his study had already compensated for age differences by examining children who had gotten all four of their DTP shots. This selection ensured that all the children in his study were at least 18 months old, he said. All the children were under age 3, he said, because he was not allowed to examine post-2000 data. If the parents' claims are true, Blaxill said, the reduced use of Thimerosal after 2000 will reduce the number of new autism diagnoses within a few years. This month, Rick Rollens, a California autism activist, combed through state data and reported that the number of new autism cases over the past six months, as compared with the same period 12 months ago, dipped 6percent, from 1,560 to 1,471. A few more quarters are needed to confirm the trend, Blaxill said, but " that's the acid test. " ### National Journal Quote Link to comment Share on other sites More sharing options...
Guest guest Posted April 27, 2004 Report Share Posted April 27, 2004 I'm concerned though that blaxill is according to this article, thinking that there WAS reduced use of thimerosal after 2000... I don't buy it! I think there was some slight reduction but I think a lot of kids still got quite a bit of thimerosal, particularly given the fact that they started recommending flu shots for pregnant women and babies a couple of years ago and that was prior to their current effort to make the 1 microgram of mercury version available to babies 6 months and under, as they are saying they will do this fall. I don't know... I'm just not buying it. I think that to expect that autism rates are about to drop off and publicly stating it is leaving a door wide open for criticism. What if they don't drop off within the next year or two because the mercury was still being used so much. It may take a while to see a drop, esp given how the Geiers held up bottles of thimerosal containing vaxes in front of the IOM. They're still out there... W --- In , " Hokkanen " < If the parents' claims are true, Blaxill said, the reduced use of Thimerosal after 2000 will reduce the number of new autism diagnoses within a few years. This month, Rick Rollens, a California autism activist, combed through state data and reported that the number of new autism cases over the past six months, as compared with the same period 12 months ago, dipped 6percent, from 1,560 to 1,471. A few more quarters are needed to confirm the trend, Blaxill said, but " that's the acid test. " Quote Link to comment Share on other sites More sharing options...
Guest guest Posted April 27, 2004 Report Share Posted April 27, 2004 Some states numbers have gone down on the younger kids...which would show less thimerosal for all those " well baby visits " .....Each state, MD's office,,etc is different as far as old vs new vaccines.... merrywbee <maryandphilip@...> wrote: I'm concerned though that blaxill is according to this article, thinking that there WAS reduced use of thimerosal after 2000... I don't buy it! I think there was some slight reduction but I think a lot of kids still got quite a bit of thimerosal, particularly given the fact that they started recommending flu shots for pregnant women and babies a couple of years ago and that was prior to their current effort to make the 1 microgram of mercury version available to babies 6 months and under, as they are saying they will do this fall. I don't know... I'm just not buying it. I think that to expect that autism rates are about to drop off and publicly stating it is leaving a door wide open for criticism. What if they don't drop off within the next year or two because the mercury was still being used so much. It may take a while to see a drop, esp given how the Geiers held up bottles of thimerosal containing vaxes in front of the IOM. They're still out there... W --- In , " Hokkanen " < If the parents' claims are true, Blaxill said, the reduced use of Thimerosal after 2000 will reduce the number of new autism diagnoses within a few years. This month, Rick Rollens, a California autism activist, combed through state data and reported that the number of new autism cases over the past six months, as compared with the same period 12 months ago, dipped 6percent, from 1,560 to 1,471. A few more quarters are needed to confirm the trend, Blaxill said, but " that's the acid test. " ======================================================= Quote Link to comment Share on other sites More sharing options...
Guest guest Posted April 27, 2004 Report Share Posted April 27, 2004 Amalgam-fogged memory tells me that one area of reduced thimerosal was the halting of HepB injections into neonates. Much thimerosal remained in vaccines, but at least (at some point in 2000-2001), neonates began to be spared the neurologically damaging injection. merrywbee wrote: >I'm concerned though that blaxill is according to this article, >thinking that there WAS reduced use of thimerosal after 2000... I >don't buy it! I think there was some slight reduction but I think a >lot of kids still got quite a bit of thimerosal, particularly given >the fact that they started recommending flu shots for pregnant women >and babies a couple of years ago and that was prior to their current >effort to make the 1 microgram of mercury version available to babies >6 months and under, as they are saying they will do this fall. I >don't know... I'm just not buying it. I think that to expect that >autism rates are about to drop off and publicly stating it is leaving >a door wide open for criticism. What if they don't drop off within >the next year or two because the mercury was still being used so >much. It may take a while to see a drop, esp given how the Geiers >held up bottles of thimerosal containing vaxes in front of the IOM. >They're still out there... > >W > >--- In , " Hokkanen " < >If the parents' claims are true, Blaxill said, the reduced >use of Thimerosal after 2000 will >reduce the number of new autism diagnoses within a few >years. This month, Rick Rollens, >a California autism activist, combed through state data and >reported that the number of >new autism cases over the past six months, as compared with >the same period 12 months >ago, dipped 6percent, from 1,560 to 1,471. A few more >quarters are needed to confirm >the trend, Blaxill said, but " that's the acid test. " > > > > > Quote Link to comment Share on other sites More sharing options...
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