Which specific, harmful bacteria can grow even in refrigeration and is associated with "Use By" date failures?
Answer
Listeria.
When discussing the critical nature of the "Use By" date, the text highlights specific pathogens that make sensory checks unreliable for safety. *Listeria* is explicitly named as a bacterium of particular concern because, unlike some spoilage organisms, it possesses the dangerous capability to continue growing even when food is kept under refrigeration temperatures. This means that milk or cooked meat kept past its "Use By" date may appear and smell perfectly normal, yet still harbor sufficient levels of *Listeria* to cause serious illness.
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