Tick-Borne Diseases Quiz
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Tick-Borne Diseases Quiz

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@ColorfulPythagoras

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Questions and Answers

What is the main mode of transmission of Theileria?

  • Stage to stage transmission (correct)
  • Airborne transmission
  • Direct contact between animals
  • Waterborne transmission
  • Which cell type is primarily infected during the schizogony stage of Theileria in the vertebrate host?

  • Red blood cells
  • Platelets
  • Lymphocytes (correct)
  • Neutrophils
  • What is the significance of infecting red blood cells (RBCs) in the pathogenesis of Theileria?

  • It enhances transmission to the vector (correct)
  • It leads to joint inflammation
  • It causes fever in the host
  • It has no impact on the disease progression
  • Which stage of Theileria life cycle occurs in the tick's midgut?

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

    What differentiates Theileriosis (East Coast Fever) from other tick-borne diseases?

    <p>Transovarian transmission</p> Signup and view all the answers

    What is the key factor that influences the severity of Theileria infection in imported animals?

    <p>Genetic resistance</p> Signup and view all the answers

    What is the main clinical sign of Theileriosis?

    <p>Fever above 42°C</p> Signup and view all the answers

    Which species of Theileria causes East Coast fever in Eastern and Southern Africa?

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

    Which region is affected by tropical theileriosis caused by T.annulata?

    <p>North Africa</p> Signup and view all the answers

    What is a significant factor that influences the pathogenesis of Theileria?

    <p>Age and condition of the host</p> Signup and view all the answers

    Which is the only species of economic significance infecting small ruminants?

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

    What can be the mortality rate in fully susceptible cattle with Theileriosis?

    <p>Nearly 100%</p> Signup and view all the answers

    Which of the following statements about Anaplasma is correct?

    <p>They multiply through binary fission and are transmitted from RBCs to another through intercellular bridges.</p> Signup and view all the answers

    Which species of Anaplasma is known to cause malignant anaplasmosis in cattle?

    <p>Anaplasma marginale</p> Signup and view all the answers

    What is the primary mode of transmission for Anaplasma species?

    <p>Transmitted by hard ticks</p> Signup and view all the answers

    Which of the following statements about the pathogenesis of anaplasmosis is correct?

    <p>The acute phase is characterized by marked anemia and petechial hemorrhages, especially on the mucous membranes.</p> Signup and view all the answers

    Which of the following Anaplasma species primarily affects sheep and goats?

    <p>Anaplasma ovis</p> Signup and view all the answers

    Where are Anaplasma organisms typically located within the infected red blood cells (RBCs)?

    <p>Near the center or margin of RBCs</p> Signup and view all the answers

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