Veterinary Preventive Medicine-II

DIAGNOSIS

• Samples- vesicles and vesicular fluid, scabs
  • Based on characteristic lesions on the skin and infected cells show intracytoplasmic acidophilic inclusion bodies
  • Animal inoculation test- The lymph or skin materials of the affected sheep inoculated on the scarified skin surface of the healthy sheep.
  • Development of the disease in the inoculated sheep – positive reaction
  • other tests- CFT, AGID, counter immuno electrophoresis

Differential diagnosis

• FMD
• Orf or contagious ecthyma