When their nineteen-month-old son, Miles, was diagnosed with autism, Karyn Seroussi, a writer, and her husband, a scientist, fought back with the only weapons at their disposal: love and research. Consulting medical papers, surfacing the Web, and networking with other parents, they traced the onset of their child's problems to an immune system breakdown that coincided with his vaccinations. As a result, his digestive system was unable to break down certain proteins, which in turn led to abnormal brain development. So Karyn and her husband got to work -- Karyn implementing their program at...