cases of autism diagnosed in the U.S. have increased by 57% (in 2002 was detected in 1 / 150 children, while in 2006, year of study, the incidence was 1 / 110 children). This rise is certainly a dramatic news.
The causes are still unknown, between them is evident that there is a better detection, but this does not justify an increase as high.
Some causes are being considered the vaccines, household products and diet.
Autism usually appears during the first 3 years of life, although the diagnosis may be later.
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Source: The Wall Street Journal
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