German health officials said today that the deadliest E. coli outbreak in recorded history did not start with vegetable sprouts from an organic farm in northern Germany after all. In the past month, the European outbreak has sickened more than 2300 people, mostly in Germany. Twenty-two people have died. Earlier this week, officials backed away from the claim that it originated in Spanish cucumbers. Should southern Californians be worried? How can people make sense of conflicting messages about the cause?