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