Changes

====Pathogenesis====

====Pathogenesis====

*Entry via '''aerosol'''

*Entry via '''aerosol'''

*Initial replication in the [[Respiratory Viral Infections - Pathology#Equine rhinopneumonitis|upper respiratory tract]]

*Initial replication in the upper respiratory tract

*By 24hrs, '''coughing''' is induced once virus has reached bronchi and pulmonary lymph tissue

*By 24hrs, '''coughing''' is induced once virus has reached bronchi and pulmonary lymph tissue

*Cell-associated '''viremia''', with virus predominantly in the T cells

*Cell-associated '''viremia''', with virus predominantly in the T cells