What’s behind rising autism rates

The number of 8-year-olds with an autism spectrum disorder rose from 1 in 88 (or 11.3 per 1,000) in 2008 to 1 in 68 (14.7 per 1,000) in 2010, the U.S. Centers for Disease Control and Prevention estimates.

U.S. CDC; E. Otwell

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