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Can an infection give children OCD?

CBC News

Quirks & Quarks, CBC News

October 2013

Kelly O’Donnell says her seven-year-old daughter came home from school tearful. At a swimming lesson, her dad noticed she couldn’t stop looking over her shoulder, O’Donnell said. Within 48 hours, she progressed to a point where everything she did required repetitive behavior. When they came back from the doctor, they found she was positive for strep throat. A science journalist explains that a bad case of strep in an unlucky child can lead to cross-receiving autoimmune reactions.

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