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A 38y old pregnant woman begins to suffer from headaches, fever and stiff neck during her 14th week of gestation. A CSF sample contains GM + ve bacillus. The patient ingested this agent in contaminated imported cheese. Which of the following properties of the agent promotes its transmission in undercooked foods ?

a) Toxin formation
b) Salt tolerance
c) Facultative anaerobiosis
d) Growth at low temperatures

D..

dd

Dddd
Listeria monocytogen

This is Listeria but can you explain the answer please?

It doesn't really grow in low temp. It grows when food is between -4 and +38 degrees celsius. so a way of killing it would be really high temp or freezing it at a really low temp so how is the answer D?

Thanks for the Q.

"RNA helicases" -> induced @low temp.

ahhh ok the rna helicases of listeria allow it to grow at 0 degrees celsius. Got it. Thanks again Cardio69.