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Autism And Role Of Thimerasal Essay

  • Submitted by: chanusha07
  • on December 12, 2010
  • Category: Social Issues
  • Length: 3,312 words

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Below is an essay on "Autism And Role Of Thimerasal" from Anti Essays, your source for research papers, essays, and term paper examples.

Autism is one of the most severe and disruptive of all childhood disorders. It is a communicative disorder that

interferes with an individual's ability to form social relationships, as well as to communicate with others. Autism

Spectrum Disorders (ASM's) officially belong to a group of illnesses known as 'developmental disabilities'. They are

characterized by problems with social and communication skills of varying degrees. Autistic people also commonly

display unusual ways of learning, reacting to different sensations and paying attention. Sufferers also tend to

repeat certain behaviors and have difficulties when required to change their usual daily activities. ASD's are

commonly said to start in childhood and last for the person’s whole life, but as you will see below, there are many

new theories as to the cause(s) of these disorders and many offer the hope of effective treatments{1]. Recent

reviews in environmental health have suggested that early exposure to hazardous substances may underlie some

cases of neurodevelopment disorders, including ADHD, learning disabilities, and speech/language difficulties [2].

In 1999, Thimerosal used as a vaccine preservative was identified as a widespread source of organic mercury

exposure in infants [3]. Mercury (Hg), a heavy metal, is considered highly neurotoxin [4]. The amount of mercury

in vaccines, while small, exceeded USEPA safety guidelines on a cumulative basis. Certain individuals may exhibit

severe adverse reactions to low doses of Hg which are otherwise largely benign to the majority of those exposed

[5].Some individuals with idiopathic autism spectrum disorder may represent such a sensitive population.

Characteristics of Autism possibly might possibly be:

(a) ASD traits are known to arise from mercury exposure;

(b) Onset of ASD symptoms is temporally associated with administration of immunizations;

(c) The reported increase in the prevalence of autism in...

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