The PANDAS puzzle: Can a common infection cause OCD in kids?
A medical mystery that has families in crisis.

By Neil Swidey
October 28, 2012
Andy Martin

IMAGINE THAT ONE NIGHT you put your bright, athletic, well-adjusted 8-year-old son to bed, a kid who loves playing baseball and cracking jokes and scarfing down chocolate chip cookies. The next morning, he wakes up as someone entirely different, and in subsequent days turns into someone unrecognizable...