Mycobacterium avium in Veterinary Medicine
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Questions and Answers

What is the primary host for Mycobacterium bovis TB?

  • Dogs
  • Swine
  • Cattle (correct)
  • Parrots

Which of the following is part of the Mycobacterium avium complex (MAC)?

  • Mycobacterium tuberculosis
  • Mycobacterium abscessus
  • Mycobacterium avium (correct)
  • Mycobacterium kansasii

What are the primary hosts for Mycobacterium avium subsp. paratuberculosis?

  • Swine
  • Cats
  • Dogs
  • Cattle (correct)

Which of the following are characteristics of Nontuberculous Mycobacteria?

<p>Environmental saprophytes (B)</p> Signup and view all the answers

How do niacin-negative Mycobacterium species respond to nitrate?

<p>They do not reduce nitrate (A)</p> Signup and view all the answers

Which of the following is true about Mycobacterium genavense?

<p>It is a member of the Mycobacterium avium complex (B)</p> Signup and view all the answers

Which type of Mycobacterium species is recovered from hot and cold water taps and birds susceptible to quinolones?

<p>Mycobacterium xenopi (D)</p> Signup and view all the answers

What is a characteristic feature of colonies of Mycobacterium xenopi on Middlebrook 7H10 agar?

<p>Small colonies with dense centers and filamentous edges (D)</p> Signup and view all the answers

Which Mycobacterium species is associated with infections in patients with cystic fibrosis and is an important reservoir in tap water?

<p>Mycobacterium abscessus (B)</p> Signup and view all the answers

What characteristic feature is seen in young colonies of Mycobacterium fortuitum group grown on cornmeal agar?

<p>Colonies with bird’s nest appearance (A)</p> Signup and view all the answers

Which test result is associated with Mycobacterium abscessus?

<p>Positive 3-day arylsulfatase test, no reduction of nitrate, and growth on MacConkey agar without crystal violet (A)</p> Signup and view all the answers

Which Mycobacterium species is isolated from water, soil, and dust associated with localized cutaneous infections?

<p>Mycobacterium fortuitum (C)</p> Signup and view all the answers

Which Mycobacterium species is the causative agent of Johne disease?

<p>Mycobacterium avium subsp. paratuberculosis (C)</p> Signup and view all the answers

Which Mycobacterium species requires hemoglobin or hemin for growth?

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

Which Mycobacterium species is associated with disseminated infections in patients with AIDS?

<p>Mycobacterium genavense (C)</p> Signup and view all the answers

Which Mycobacterium species exhibits very slow growth, needing mycobactin-supplemented medium for primary isolation?

<p>Mycobacterium avium subsp. paratuberculosis (D)</p> Signup and view all the answers

Which Mycobacterium species is strongly acid-fast, short, and arranged in tight clusters or cords?

<p>Mycobacterium kansasii (D)</p> Signup and view all the answers

Which Mycobacterium species causes disease in poultry and swine?

<p>Mycobacterium avium subsp. paratuberculosis (D)</p> Signup and view all the answers

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