Streptococci Virulence Factors Quiz
10 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the drug of choice for the treatment of Streptococcus pyogenes infections?

  • Penicillin G (correct)
  • Amoxicillin
  • Erythromycin
  • Vancomycin

Which test is used to confirm the identity of Streptococcus pyogenes?

  • Antibiotic susceptibility testing
  • Lancefield grouping and biochemical testing (correct)
  • Catalase test
  • Gram staining

What is the Lancefield group of Streptococcus pyogenes?

  • Group D
  • Group C
  • Group B
  • Group A (correct)

Which test is used to differentiate Streptococcus pyogenes from other streptococci?

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

Which surface proteins are used to further differentiate strains of Streptococcus pyogenes?

<p>M, R, and T proteins (B)</p> Signup and view all the answers

What is the primary source of Streptococcus agalactiae (Group B Streptococcus) in humans?

<p>Perineal and vaginal flora (C)</p> Signup and view all the answers

How can Streptococcus agalactiae (Group B Streptococcus) be transmitted?

<p>Transvaginal and transplacental transmission (B)</p> Signup and view all the answers

Which of the following is a characteristic of the colonial morphology of Streptococcus pyogenes?

<p>Beta-hemolytic (D)</p> Signup and view all the answers

What is the microscopic appearance of Streptococcus pyogenes?

<p>Gram-positive cocci in chains (A)</p> Signup and view all the answers

What is the purpose of long-term antibiotic prophylaxis in patients with a history of rheumatic fever?

<p>To prevent recurrence of rheumatic fever (A)</p> Signup and view all the answers

More Like This

Use Quizgecko on...
Browser
Open
Browser
Browser