為什麽CDC做出關於李氏杆菌汙染的普遍警告而非單一品種召回

原因就是在不同的州，不同的超市同時出現病例，患者發病前吃的並不是同一種東西。估計是一種在美東美西都有銷售的熟肉品種被汙染，然後進一步汙染了Deli的切肉機和展示櫃，所有的冷切的東西都被汙染了。因此，有問題的恐怕絕不止是六州的幾個超市而是多得多。

在找出關鍵汙染產品之前隻能做籠統的警告，高危人群應該高溫加熱後再食用。

CDC 官網這樣解釋：

Deli meats (cold cuts, lunch meats, hot dogs, and pâtés sold at the deli) and cheeses are known sources of Listeria illnesses. This is because Listeria can easily spread among food on deli countertops, deli slicers, surfaces, and hands. Listeria is a hardy germ that can be difficult to fully remove once it is in the deli. It can survive and grow at cold temperatures in the refrigerator.

Information collected so far shows that deli meat and cheese purchased at deli counters in multiple states are the likely sources of this outbreak.

It is difficult for investigators to identify a single food as the source of outbreaks linked to deli meats and cheeses. This is because Listeria spreads easily between food and the deli environment and can persist for a long time in deli display cases and on equipment. A contaminated food likely introduced the outbreak strain of Listeria into delis in multiple states. Investigators are working to identify any specific products or delis that may be contaminated with the outbreak strain.

所有跟帖： 

• 實驗室統治世界不好。應該關注汙染來源去調查清理。而不是造成恐慌 -julie116- ♀ (0 bytes) () 11/11/2022 postreply 18:33:47