The Correct Answer is A- Listeria monocytogenes is reportedly carried in the intestinal tract of 5-10% of the human population without any apparent symptoms of disease.
- A peculiar property of L. monocytogenes that affects its food-borne transmission is the ability to multiply at low temperatures.
- Listeria are actively motile by means of peritrichous flagella at room temperature (20-25 degrees), the organisms do not synthesize flagella at body temperatures (37 degrees)
- Because L. monocytogenes multiplies intracellularly, it is largely protected against circulating immune factors (AMI) such as antibodies and complement-mediated lysis.
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Karnataka PGET 2007 MCQs
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