FDA reverses course again and reaffirms Taylor Farms Lettuce is reportedly the source of Cyclospora outbreak. The agency removed references to the positive sample and acknowledged there were no confirmed positive product tests for Cyclospora. That reversal prompted questions about whether Taylor Farms had been wrongly blamed. In fact, the FDA specifically said the false-positive test "does not change the basis for FDA's ongoing outbreak investigation" because the evidence continues to point toward Taylor Farms. New York still has not been added to the FDA's official outbreak investigation.