Authorities hunting the source of a nationwide e - coli outbreak are focusing on nine california farms after discovering what could be a crucial clue - - an opened bag of spinach left in the refrigerator of someone sickened by the bacteria 在被大肠杆菌感染的患者的冰箱里找到一袋被打开的菠菜后，官方根据这一重要线索将在全国范围内爆发的大肠杆菌的源头锁定在九个加州的农场。
Health officials are waiting on test results from california farms and packing plants that could help them pinpoint the source of that deadly e - coli outbreak . 21 states have reported more than 100 e . - coli cases linked to tainted spinach , including a 77 - year - old wisconsin woman who died 卫生官正在等待从佳利福尼亚的农场以及包装工厂出来的检测结果，这些结果能够帮助他们查明致命的大肠杆菌的起源，已经有21个州发现了超过100例与感染有关的病例，其中包括一例死亡病历：温斯康新州一名77岁的妇人死于大肠杆菌感染。
