Principles and changes with Viral Diseases
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Questions and Answers

Which of the following is true about clinical signs of virus infections?

  • Different viruses cause the same diseases
  • Clinical signs depend on the organ or region affected (correct)
  • Clinical signs are unrelated to the body system affected
  • Clinical signs are always acute

    • What is the difference between acute and chronic virus infections?

  • Chronic infections have more diverse clinical signs than acute infections
  • Acute infections are short-lived, while chronic infections last longer (correct)
  • Acute infections are more severe than chronic infections
  • Chronic infections are more common than acute infections

    • How does the host response contribute to the pathogenesis of a virus infection?

  • The immune response is unrelated to the disease
  • The immune response has no effect on the disease
  • The immune response helps clear the disease
  • The immune response worsens the disease (correct)

    • Which body systems are commonly affected in acute virus infections?

    <p>Respiratory and intestinal systems</p> Signup and view all the answers

    What are some common clinical signs of acute virus infections?

    <p>Fever, depression, anorexia</p> Signup and view all the answers

    Which two viruses are involved in cat 'flu?

    <p>Calcivirus and Herpesvirus</p> Signup and view all the answers

    What are some clinical signs of cat 'flu?

    <p>Nasal and ocular discharge, pyrexia, anorexia, lethargy</p> Signup and view all the answers

    What can be used to check for ulceration in cat 'flu?

    <p>Fluorescein dye</p> Signup and view all the answers

    Why are secondary bacterial infections common for intestinal and respiratory virus infections?

    <p>Intestinal and respiratory sites have resident bacteria</p> Signup and view all the answers

    Are virus infections always acute?

    <p>Virus infections can be both acute and chronic</p> Signup and view all the answers

    Which of the following viruses is characterized by long drawn out infections?

    <p>Feline immunodeficiency virus (FIV)</p> Signup and view all the answers

    What is a common clinical sign of FeLV (feline leukemia virus) infection?

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

    Which virus causes a disease in poultry that leads to a reduction of lymphocytes in the bursae?

    <p>Infectious bursal disease virus (IBDV)</p> Signup and view all the answers

    Which virus is characterized by latency with on and off disease, particularly at times of stress?

    <p>Herpes viruses</p> Signup and view all the answers

    What are the clinical signs of acute virus infections?

    <p>Pyrexia, depression, anorexia, muscle weakness, general weakness</p> Signup and view all the answers

    What are some common clinical signs of cat 'flu?

    <p>Nasal and ocular discharge, pyrexia, anorexia, lethargy</p> Signup and view all the answers

    How do secondary bacterial infections commonly occur in intestinal and respiratory virus infections?

    <p>Any damage to the airway can predispose the entry of resident bacteria</p> Signup and view all the answers

    What is the difference between acute and chronic virus infections?

    <p>Acute infections are usually short-lived and the animal will recover, while chronic infections are long-lasting</p> Signup and view all the answers

    How does the host immune response contribute to the pathogenesis of a virus infection?

    <p>The immune response can lead to pathology and worsening of the disease</p> Signup and view all the answers

    Which body systems are commonly affected in acute virus infections?

    <p>Respiratory, intestinal, neurological, renal, etc.</p> Signup and view all the answers

    What can be used to check for ulceration in cat 'flu?

    <p>Fluorescin dye</p> Signup and view all the answers

    What are some common clinical signs of lentivirus infections in animals?

    <p>Pyrexia, villus stunting, crypt dilation and necrosis, chronic infections and nasal discharge</p> Signup and view all the answers

    How do lentiviruses differ from other viruses?

    <p>Lentiviruses are characterized by long drawn out infections</p> Signup and view all the answers

    Which retrovirus is known for causing immunosuppression and occasionally lymphoma in animals?

    <p>FIV (feline immunodeficiency virus)</p> Signup and view all the answers

    Which type of virus causes chronic rhinitis in cats?

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

    What are some common clinical signs of FeLV (feline leukemia virus) infection?

    <p>Immunosuppression, occasionally lymphoma</p> Signup and view all the answers

    Which viruses exhibit latency with on and off disease, particularly at times of stress?

    <p>Herpes viruses</p> Signup and view all the answers

    Which retrovirus is associated with lung tumors in animals?

    <p>JSRV (Jaagsiekte sheep retrovirus)</p> Signup and view all the answers

    What is the significance of inclusion bodies in viral infections?

    <p>Inclusion bodies can be used to identify certain viruses, such as Herpesviruses or Poxviruses</p> Signup and view all the answers

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