객관식
Which food safety control measure is relatively less effective at limiting cases of Listeriosis when compared to diseases caused by other foodborne pathogens?
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- 1. Introduction to Microbiology3h 26m
- Introduction to Microbiology17m
- Introduction to Taxonomy27m
- Scientific Naming of Organisms9m
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- 1) Hide Within Host Cells5m
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- Viruses Evade the Immune Response27m
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- Introduction to Chain of Infection5m
- Reservoirs of Infection12m
- Disease Transmission4m
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- 29. Microbial Infections - Skin and Eyes46m
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- 33. Microbial Infections - Nervous System2h 18m
- 34. Microbial Infections - Urogenital System1h 40m
33. Microbial Infections - Nervous System
Listeriosis
객관식
Which option below is a feature of Listeria monocytogenes infections that aids in its ability to avoid immune detection?
A
Ability to alter its surface antigens over time.
B
Reproduction within host cells and the ability to spread directly from cell to cell.
C
Cells are encapsulated within a polysaccharide capsule.
D
Creation of biofilms.
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검증된 단계별 안내1
Understand that Listeria monocytogenes is a facultative intracellular pathogen, meaning it can live and reproduce inside host cells.
Recognize that reproducing within host cells allows the bacteria to avoid exposure to antibodies and other components of the host's immune system that operate outside cells.
Note that Listeria monocytogenes can spread directly from one host cell to another without exiting into the extracellular environment, further evading immune detection.
Compare this mechanism to other options such as antigenic variation, polysaccharide capsules, or biofilm formation, which are strategies used by different bacteria but are not the primary immune evasion method for Listeria monocytogenes.
Conclude that the key feature aiding immune evasion in Listeria monocytogenes infections is its intracellular reproduction and direct cell-to-cell spread.
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