An Outbreak of Autism, or a Statistical Fluke?

Major brain structures implicated in autism.

Autism is terrifying the community of Somali immigrants in Minneapolis, and some pediatricians and educators have joined parents in raising the alarm. But public health experts say it is hard to tell whether the apparent surge of cases is an actual outbreak, with a cause that can be addressed, or just a statistical fluke.

… A small recent study of refugees in schools in Stockholm found that Somalis were in classes for autistic children at three times the normal rate.

Calls to representatives of Somali groups in Seattle and San Diego found that they were aware of the fear in Minneapolis but unsure about their own rates. Doctors familiar with the Somali communities in Boston and Lewiston, Me., had heard of no surges there.” NYTimes.