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5 Written questions

5 Matching questions

  1. What is the pathogenesis of H. somni
  2. What are the virulence factors of A. pleuropneumoniae
  3. How do you diagnose A pleuropneumoniae
  4. What does CEM look like in a smear
  5. How do you diagnose CEM
  1. a Culture clinical samples on BA with staph streak
    (after 24-48 hours of incubation, tiny hemolytic colonies appear near staph streak (V-factor is supplied by staph))
  2. b Capsule: anti-phagocytic
    Endotoxin: thrombi; interlobar edema; damage to vasculature
    Cytokines: macrophage toxins; hemolytic toxins
  3. c septicemia -> attachment to vascular endothelial cells -> platelet aggregation -> coagulation -> thrombosis
  4. d gram negative rods
  5. e Copious vaginal discharge
    Culture on BA: 3 times in 2 weeks negative culture required to establish freedom from dz

5 Multiple choice questions

  1. Abs protect against homologous types, some cross protection
    Colostrum for piglets
  2. culture blood, brain, spleen, liver, fetal stomach contents, placenta, prepuce washing from untreated cases on BA under 10% CO2
  3. H. parasuis - mucosa-> blood ->serosal and synovial surfaces
  4. septicemia and death
  5. Oxytetracycline - early treatment important

5 True/False questions

  1. What diseases do H. parasuis causefever, staggering, knuckling of fetlock, somnolence, circling, blindness, coma, death

          

  2. What do survivors of A. pleuropneumonia often developchronic lesions
    abscessation
    pleuritic adhesions affecting growth

          

  3. How do you control A. pleuropneumoniaeScreen using kits (ELISA).
    Serum samples are tested for Ab against A. pleuropneumoniae
    In a clean herd, animals should be negative. Introduce only serogically negative animals into the clean herd

          

  4. Where do many normal pigs carry H. parasuisBacterins (vaccines) help

          

  5. How do you treat A. pleuropneumoniaeScreen using kits (ELISA).
    Serum samples are tested for Ab against A. pleuropneumoniae
    In a clean herd, animals should be negative. Introduce only serogically negative animals into the clean herd

          

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