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5 Written questions

3 Matching questions

  1. Listeriosis
  2. Scrapie
  3. Rabies
  1. a endemic in Canada US Western Europe
    not seen in UK Australia & New Zealand
  2. b Bacteria, found in soil, water and plants, high risk to pregnant women
  3. c a fatal disease of sheep characterized by chronic itching and loss of muscular control and progressive degeneration of the central nervous system

5 Multiple choice questions

  1. virus grows in nasal/ocular mucosa
    mucosal lesions develop after 2-3 days
    9-11 days after infection mucosal lesions disappear & encepahlitic signs appear
  2. caused by a disturbance in thiamine metabolism
    -thiamine deficiency
    -thiaminase
    -increased dietary sulfates
    most often occurs in fast growing cattle on high concentrate diets
    low rumen pH associated with high concentrate diets facilitates thiaminase production
  3. Diagnosis
    No practical antemortem tests, measurement of thiamine levels are often misleading, diagnosis often made by treatment
  4. Fresh brain tissue required immunofleurescense of tissue allows for detection of anitgen/antibody reaction
  5. Illness duration 8-72hrs

5 True/False questions

  1. PsuedorabiesRhabdo virus

          

  2. Polioencephalomalaciavirus grows in nasal/ocular mucosa
    mucosal lesions develop after 2-3 days
    9-11 days after infection mucosal lesions disappear & encepahlitic signs appear

          

  3. Encephalititc IBRcalves <6wks old most susceptible

          

  4. Polioencephalomalaciamost common cause in excessive thiamine consumption through plants

          

  5. Encephalitic IBRcalves <6wks old most susceptible