"When Dr. Richard Horowitz moved to the Hudson Valley over a decade ago to start his own medical practice, he didn't know that he would be jumping into the center of one of the fiercest, most heated medical disputes being waged today. The ongoing debate over Lyme disease as a chronic illness has made it difficult for sufferers to find care, as doctors are in many cases unable or unwilling to diagnose it. This is how once-treatable infections can become...