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</p> Signup and view all the answers

    How do niacin-negative Mycobacterium species respond to nitrate?

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

    Which Mycobacterium species is the causative agent of Johne disease?

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

    Which Mycobacterium species requires hemoglobin or hemin for growth?

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

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

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

    Which Mycobacterium species causes disease in poultry and swine?

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

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