Unidentified Man II: You could have, for example, field birds feeding on animal fecal material that has E. Coli 0157. They land somewhere in the field. They contaminate a small area.

• 不明身份人士2：例如，靠动物排泄物过活的生活在旷野间的鸟类；这些排泄物中就含有E.；大肠杆菌0157。这些鸟儿在某些地方飞落下来，进而污染了一小片区域。