"As a third-grader in Winsted, Connecticut, last year, Matthew Asselin was sick -- a lot. He was lethargic and plagued with a persistent wet cough, respiratory infections and painful headaches."

"As the school year wound down, Matthew's health worsened. He was out for two weeks in the spring with pneumonia and then developed a sinus infection so severe he needed to spend the night at the hospital, where he received intravenous antibiotics and breathing treatments.

In all, Matthew missed 53 days of school.

But over the summer, a strange thing happened. Matthew was healthy. He was energetic. He could ride his bike for hours at a time."

David S. Martin reports for CNN January 14, 2012. [2]