*Clinical signs:nasal discharge, sneezing, coughing, lacrimation, and increased respiratory rate
*Clinical signs:nasal discharge, sneezing, coughing, lacrimation, and increased respiratory rate
−
*Clinical disease most severe in young calves - can develop mucosal ulcerative lesions in the [[Oesophagus#Erosive & Ulcerative Pathology|oesophagus]] and forestomachs and viraemia with multiorgan infection
+
*Clinical disease most severe in young calves - can develop mucosal ulcerative lesions in the [[Oesophagus - Pathology#Erosive & Ulcerative Pathology|oesophagus]] and forestomachs and viraemia with multiorgan infection
*Cause of abortion >5 months of gestation
*Cause of abortion >5 months of gestation
*May contribute to [[Respiratory Bacterial Infections - Pathology#Enzootic pneumonia of calves|Enzootic pneumonia of calves]]
*May contribute to [[Respiratory Bacterial Infections - Pathology#Enzootic pneumonia of calves|Enzootic pneumonia of calves]]