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自閉癥患者在美國激增

www.www471818.com  2009-12-22 9:23:09  來源：中國孤獨癥支援網

　　【中國孤獨癥資源網報道】最近一項美國全國的研究顯示：2000年以來8歲左右兒童自閉癥數字從1/170劇增至1/110。其中男孩劇增60%女孩48%。自閉癥有遺傳的因素，也有環境的因素。迄今認為美國使用Thimerosal為疫苗防腐為原因的訴訟案件仍然不斷。Thimerosal含汞，而這些訴訟建議是汞中毒促成自閉癥的發作。2000年以來美國疫苗逐漸不用Thimerosal或含汞的防腐成分了。遺傳的因素包括高齡產婦，與產婦在懷孕時所接觸的環境問題，所造成的基因缺陷。但是這項研究迄今無法找到病例如此劇增的原因，除了指出增加的速度顯示原因比較可能是環境。

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