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CDC to Study Vaccines and Autism
HuffingtonPost.com
David Kirby
Author/Journalist
Posted: March 18, 2011 05:46 PM
The Centers for Disease Control and Prevention wants to study autism as a
possible clinical outcome of immunization, as part of its newly adopted 5-
year research agenda for vaccine safety, the agency said on its website.
The CDC will also study mitochondrial dysfunction and the potential risk for
post-vaccine "neurological deterioration," and convene an expert panel on
the feasibility of studying health outcomes such as autism among vaccinated
and unvaccinated children.
The CDC plan adopts recommendations approved by the National Vaccine
Advisory Committee of the US Department of Health and Human Services. It
also comes one month after the federal government's leading autism body, the
Interagency Autism Coordinating Committee (IACC), signaled a shift in
research priorities toward environmental triggers for autism, which the IACC
said could include toxins, biological agents and "adverse events following
immunization."
The Centers for Disease Control and Prevention's Immunization Safety Office
Scientific Agenda indentified the need to research "Neurodevelopmental
disorders, including autism spectrum disorder (ASD)" as a possible clinical
outcome of vaccination.
The plan also seeks to deternine if the mercury-based preservative
thimerosal is associated with increased risk for "clinically important tics
or Tourette syndrome." The CDC cited one study (Thompson, NEJM, 2007), which
"found that increasing exposure to mercury from birth to age 7 months was
associated with motor and phonic tics in boys," and added that "an
association between exposure to thimerosal and tics was found in two earlier
studies (Andrews, Pediatrics, 2004; Verstraeten, Pediatrics, 2003)."
And, noting that the IACC federal autism panel "suggested several studies
including vaccinated versus unvaccinated children to determine if there are
differences in health outcomes," the CDC said it will convene an "external
expert committee to offer guidance on the feasibility of conducting such
studies and additional studies related to the immunization schedule,
including studies that may indicate if multiple vaccinations increase risk
for immune system disorders."
Meanwhile, the IACC has signaled a shift in research priorities into the
causes of autism, moving away from genetic studies in favor of investigating
the interaction between genes and environmental factors, which it said
could include toxins, biological agents and vaccines.
The IACC, among other things, helps direct millions of federal dollars into
autism research. Until now, the IACC's updated strategic plan noted, "the
majority of this funding (was) directed toward the identification of genetic
risk factors (with) less funding and attention toward environmental
research."
A number of environmental factors are now being researched, the IACC said,
adding that, "Recent studies suggest that factors such as parental age and
exposure to infections, toxins, and other biological agents may confer
environmental risk. These findings require further investigation."
As for vaccines, "Numerous epidemiological studies have found no
relationship between ASD and vaccines containing the mercury based
preservative thimerosal," the IACC noted. "These data, as well as subsequent
research, indicate that the link between autism and vaccines is unsupported
by the epidemiological research literature. However, the Institute of
Medicine report acknowledged that the existing population-based studies were
limited in their ability to detect small susceptible subpopulations that
could be more genetically vulnerable to environmental exposures."
There are several new research initiatives that the IACC has proposed,
including:
* Support at least three studies of special populations and
environmental risk factors for ASD in pregnancy and the early postnatal
period, such as toxic exposures and "adverse events following immunization (
such as fever and seizures), and mitochondrial impairment."
* Support at least three studies that focus on the role of epigenetics (
the environmental impact on genes) in the etiology of ASD.
* Initiate studies on at least 10 environmental factors identified in
the recommendations from the 2007 IOM report "Autism and the Environment:
Challenges and Opportunities for Research."
And, the IACC once again took note that:
Although the National Vaccine Advisory Committee (NVAC) stressed that
the temporal occurrence of this regression and the immunization schedule is
not evidence of a causal relationship, regressive autism warrants further
research in rigorously defined subsets of ASD. In addition, the NVAC
recommended that studies assess whether adverse events following
immunization (e.g., fever and seizures) correlate with risk of ASD.
The strategic plan also renews the IACC's support for funding at least two
studies "to determine if there are subpopulations that are more susceptible
to environmental exposures (e.g., immune challenges related to infections,
vaccinations, or underlying autoimmune problems)."
Autism has become a "national health emergency," the IACC added.
That federal panel, along with the CDC's Immunization Safety Office, HHS's
National Vaccine Advisory Committee, and even the national Vaccine Injury
Compensation Program (VICP) now all support further research into a possible
association between autism and immunization.
For years, thousands of parents have been exhorting the government to study
adverse events following immunization such as fever and seizures, in
addition to mitochondrial impairment and "subpopulations that are more
susceptible to damage from infections, vaccines and autoimmune disorders."
Perhaps now they may finally get their wish.
HuffingtonPost.com
David Kirby
Author/Journalist
Posted: March 18, 2011 05:46 PM
The Centers for Disease Control and Prevention wants to study autism as a
possible clinical outcome of immunization, as part of its newly adopted 5-
year research agenda for vaccine safety, the agency said on its website.
The CDC will also study mitochondrial dysfunction and the potential risk for
post-vaccine "neurological deterioration," and convene an expert panel on
the feasibility of studying health outcomes such as autism among vaccinated
and unvaccinated children.
The CDC plan adopts recommendations approved by the National Vaccine
Advisory Committee of the US Department of Health and Human Services. It
also comes one month after the federal government's leading autism body, the
Interagency Autism Coordinating Committee (IACC), signaled a shift in
research priorities toward environmental triggers for autism, which the IACC
said could include toxins, biological agents and "adverse events following
immunization."
The Centers for Disease Control and Prevention's Immunization Safety Office
Scientific Agenda indentified the need to research "Neurodevelopmental
disorders, including autism spectrum disorder (ASD)" as a possible clinical
outcome of vaccination.
The plan also seeks to deternine if the mercury-based preservative
thimerosal is associated with increased risk for "clinically important tics
or Tourette syndrome." The CDC cited one study (Thompson, NEJM, 2007), which
"found that increasing exposure to mercury from birth to age 7 months was
associated with motor and phonic tics in boys," and added that "an
association between exposure to thimerosal and tics was found in two earlier
studies (Andrews, Pediatrics, 2004; Verstraeten, Pediatrics, 2003)."
And, noting that the IACC federal autism panel "suggested several studies
including vaccinated versus unvaccinated children to determine if there are
differences in health outcomes," the CDC said it will convene an "external
expert committee to offer guidance on the feasibility of conducting such
studies and additional studies related to the immunization schedule,
including studies that may indicate if multiple vaccinations increase risk
for immune system disorders."
Meanwhile, the IACC has signaled a shift in research priorities into the
causes of autism, moving away from genetic studies in favor of investigating
the interaction between genes and environmental factors, which it said
could include toxins, biological agents and vaccines.
The IACC, among other things, helps direct millions of federal dollars into
autism research. Until now, the IACC's updated strategic plan noted, "the
majority of this funding (was) directed toward the identification of genetic
risk factors (with) less funding and attention toward environmental
research."
A number of environmental factors are now being researched, the IACC said,
adding that, "Recent studies suggest that factors such as parental age and
exposure to infections, toxins, and other biological agents may confer
environmental risk. These findings require further investigation."
As for vaccines, "Numerous epidemiological studies have found no
relationship between ASD and vaccines containing the mercury based
preservative thimerosal," the IACC noted. "These data, as well as subsequent
research, indicate that the link between autism and vaccines is unsupported
by the epidemiological research literature. However, the Institute of
Medicine report acknowledged that the existing population-based studies were
limited in their ability to detect small susceptible subpopulations that
could be more genetically vulnerable to environmental exposures."
There are several new research initiatives that the IACC has proposed,
including:
* Support at least three studies of special populations and
environmental risk factors for ASD in pregnancy and the early postnatal
period, such as toxic exposures and "adverse events following immunization (
such as fever and seizures), and mitochondrial impairment."
* Support at least three studies that focus on the role of epigenetics (
the environmental impact on genes) in the etiology of ASD.
* Initiate studies on at least 10 environmental factors identified in
the recommendations from the 2007 IOM report "Autism and the Environment:
Challenges and Opportunities for Research."
And, the IACC once again took note that:
Although the National Vaccine Advisory Committee (NVAC) stressed that
the temporal occurrence of this regression and the immunization schedule is
not evidence of a causal relationship, regressive autism warrants further
research in rigorously defined subsets of ASD. In addition, the NVAC
recommended that studies assess whether adverse events following
immunization (e.g., fever and seizures) correlate with risk of ASD.
The strategic plan also renews the IACC's support for funding at least two
studies "to determine if there are subpopulations that are more susceptible
to environmental exposures (e.g., immune challenges related to infections,
vaccinations, or underlying autoimmune problems)."
Autism has become a "national health emergency," the IACC added.
That federal panel, along with the CDC's Immunization Safety Office, HHS's
National Vaccine Advisory Committee, and even the national Vaccine Injury
Compensation Program (VICP) now all support further research into a possible
association between autism and immunization.
For years, thousands of parents have been exhorting the government to study
adverse events following immunization such as fever and seizures, in
addition to mitochondrial impairment and "subpopulations that are more
susceptible to damage from infections, vaccines and autoimmune disorders."
Perhaps now they may finally get their wish.