Systematic Veterinary Virology

EROSIVE MUCOSAL PHASE

• The erosive mucosl phase is observed two to three days after prodormal fever and is characterized by raised pinheads of necrotic epithelium emerging from the surfaces of the mucous membranes lining the mouth, nasal passages and urogenital tracts. These lesions erode exposing a haemorrhagic layer. At this stage salivation is profuse.
• The erosions enlarge and coalesce. Thick yellow patches of necrotic cells begin to coat the nasal passages and mix with the nasal secretions, producing a fetid mucopurulent discharge.
• Secretions from eye also become mucopurulent. This stage is also characterized by intense thirst, poor appetite and voiding of soft faeces.