Comparison of Staphylococcus Aureus Toxins and Functions
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Questions and Answers

Which of the following toxins of Staphylococcus aureus is associated with increased virulence and can cause necrotic lesions of the skin or mucous membranes?

  • Enterotoxin A
  • Exfoliative toxins (correct)
  • Panton-Valentine leukocidin
  • Hemolysins
  • What is the most common food-borne enterobacterial infection?

  • Dysentery
  • Escherichiosis
  • Salmonellosis (correct)
  • Typhoid fever
  • Which bacterium is characteristic for lactose fermentation?

  • S. typhi
  • Sh. flexneri
  • S. typhimurium
  • E. coli (correct)
  • Where is the O-antigen of enterobacteria found?

    <p>Capsule</p> Signup and view all the answers

    Which toxin of Staphylococcus aureus is associated with causing Staphylococcal Scalded Skin Syndrome (SSSS)?

    <p>Enterotoxin A</p> Signup and view all the answers

    Which of the following is not a lactose-fermenting bacterium?

    <p>S. typhi</p> Signup and view all the answers

    Which of the following is a genus of enterobacteria that includes obligate representatives of normal human microflora?

    <p>Salmonella</p> Signup and view all the answers

    What type of respiration is characteristic of enterobacteria?

    <p>Facultative anaerobic</p> Signup and view all the answers

    Which of the following pathogenic factors are characteristic of enterobacteria?

    <p>Enterotoxin</p> Signup and view all the answers

    Which enterobacterians most commonly cause elevated urinary tract infections?

    <p>Esherihia coli</p> Signup and view all the answers

    What characteristics are common to all members of the Enterobacteriaceae family?

    <p>Facultative anaerobes</p> Signup and view all the answers

    How do pathogenic escherichias differentiate from opportunistic pathogens?

    <p>Ability to ferment lactose</p> Signup and view all the answers

    Which characteristic is specific to enteropathogenic E.coli?

    <p>Colonize enterocytes of the small intestine</p> Signup and view all the answers

    For the diagnosis of diseases caused by pathogenic intestinal rods, sowing feces are carried out on which medium?

    <p>Bismuth sulfite agar</p> Signup and view all the answers

    The pathogens of bacterial dysentery belong to which genus?

    <p>Yersinia</p> Signup and view all the answers

    Which main antigens does Shigella have?

    <p>O</p> Signup and view all the answers

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