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Kaplan Qbank USMLE



Author5 Posts
  #1

6. Which of the following best describes how Clostridium perfringens evades destruction by neutrophils in patients with clostridial myonecrosis?



A) Damaging neutrophil membranes by means of a membrane-damaging toxin



B) Preventing contact with neutrophils by means of a polysaccharide capsule



C) Preventing phagocytosis by disruption of neutrophil actin polymerization



D) Survival in the cytoplasm of a neutrophil



E) Survival in the phagosome of a macrophage



A?


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  #2

ill go with A too .. its a Alpha lecithinase maybe it damages neutrophils mem also ..

  #3

nod

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  #4

Thank you. smiling face

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  #5

A. as all others dont look that good.
but may be its the fact that clostridium works in anaerobic environment and neutrophils cant act there. as in the case of clostridium tetaniraised eyebrow.
Plz explain.


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