Oedema of the muzzle, hyperaemia of mucous membranes.

                           Oedema of the muzzle, hyperaemia of mucous membranes

                          Immediate hypersensitivity to the bites of

Culicoides variipennis, a vector of bluetongue

                          Nasal discharge, salivation and oedema of the

muzzle

Coronitis

Burnt muzzle syndrome in bovine with EHD/BT

Capillary haemorrhage in the caecum and colon of a BT virus infected sheep

Conjunctivitis

                           Hyperaemia of the oral cavity and oedema of the mucous membranes

                           Nasal discharge, hyperaemia of the mucous

membranes and oedema of the muzzle

                           Oedema of muzzle and tongue

Haemorrhage at the base of the pulmonary artery - the only pathognomic sign of BT

virus

Oedema and congestion of the lungs