Trombidiidae Family Characteristics Quiz
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Questions and Answers

What is the pathogenesis of Trombiculidae larvae?

  • They inject cytolytic enzyme and feed on partly digested tissues. (correct)
  • They lay eggs under the skin resulting in irritation.
  • They penetrate the skin and feed on blood.
  • They release a toxin that causes skin discoloration.

    • Which mite is a vector of scrub typhus?

  • Psorergates ovis
  • Pediculoides ventricosus
  • P.simplex
  • Neoschongastia philippinensis (correct)

    • How do chigger mites cause irritation?

  • By injecting toxins into the skin. (correct)
  • By sucking blood from the host.
  • By laying eggs on the skin surface.
  • By secreting a cooling agent on the skin.

    • Which mite is known as the 'red bug of US'?

    <p>T.alfreduggesi</p> Signup and view all the answers

    What is the control method recommended for trombiculid mites?

    <p>Spray 2lb/acre of toxaphene/chlordane.</p> Signup and view all the answers

    Which family of mites do not penetrate the skin and cause mild chronic inflammation?

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

    What is the family name of the mite that causes demodectic mange in various mammals?

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

    Which species of Demodex mite is known to infect humans?

    <p>D.folliculorum</p> Signup and view all the answers

    What is the primary location where Demodex mites live within the host?

    <p>In the hair follicles and sebaceous glands</p> Signup and view all the answers

    Which of the following is a characteristic of the Demodex mite's appearance?

    <p>Elongated, distinct head, thorax and abdomen, cigar-shaped with 4 pairs of stumpy legs</p> Signup and view all the answers

    What is the primary reason that demodectic mange is difficult to treat?

    <p>The mites live deep within the skin, making them less accessible to topical treatments</p> Signup and view all the answers

    Which form of demodectic mange is considered the more severe?

    <p>Pustular/follicular form</p> Signup and view all the answers

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