Bacterial Infections Quiz

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Questions and Answers

Which of the following is a major virulence factor that causes death in infected animals and humans by Bacillus anthracis?

  • Beta-lactamase
  • Alpha toxin
  • Enterotoxin
  • LF and PA (correct)

Which type of food poisoning caused by Bacillus cereus is associated with meat dishes and sauces?

  • Emetic type
  • Diarrheal type (correct)
  • Neurotoxic type
  • Enterotoxigenic type

What type of toxin-containing food causes nausea, vomiting, abdominal cramps, and diarrhea when ingested?

  • Food with neurotoxin
  • Food with emetic toxin (correct)
  • Food with alpha toxin
  • Food with enterotoxin

Which genus includes Gram-positive, spore-forming rods that produce organic acids, alcohols, and exotoxins?

<p>Clostridium (A)</p> Signup and view all the answers

What is the most frequent Clostridium species involved in soft tissue and wound infections?

<p>Clostridium perfringens (A)</p> Signup and view all the answers

Which factor predisposes individuals to Clostridium perfringens soft tissue infections?

<p>Surgical incisions (C)</p> Signup and view all the answers

Which toxin produced by Clostridium perfringens causes red blood cell rupture?

<p>Alpha toxin (B)</p> Signup and view all the answers

Which toxin is produced by all types of Clostridium perfringens and causes gas gangrene?

<p>Alpha-toxin (D)</p> Signup and view all the answers

What characteristic makes Bacillus cereus resistant to usual methods of disinfection?

<p>Production of endospores (A)</p> Signup and view all the answers

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