Cow 1 bluetongue case – clinically affected Highland cow. Extensive superficial erosion of the muzzle with a mucopurulent nasal discharge

Cow 1 bluetongue case – clinically affected Highland cow. Diffuse reddening of the dental pad with multifocal haemorrhages on the upper lip and dental pad

Cow 1 bluetongue case – clinically affected Highland cow. Ocular discharge visible at the medial canthus (wrinkling of the cornea reflects post mortem change)

Cow 1 bluetongue case – clinically affected Highland cow. 'Coronitis’: skin reddening around and above the coronary band intensifying distally with serous crusting at the coronary band

Cow 1 bluetongue case – clinically affected Highland cow. Multifocal haemorrhages with oedema visible on the cut surface of the submandibular lymph node

Cow 1 bluetongue case – clinically affected Highland cow. Extensive ecchymotic subepicardial haemorrhages

Cow 1 bluetongue case – clinically affected Highland cow. Extensive subendocardial haemorrhages in the left ventricle

Cow 2 bluetongue case – Gloucester cow. Identified as PCR positive. Multiple pinpoint haemorrhages in the skin around the bases of the teats. There were also scattered petechial haemorrhages on the skin of the ventral abdomen. No other lesions distinctive of bluetongue were seen in this cow

Cow 3 bluetongue case – clinically affected Friesian/Holstein cow. Focally extensive necrosis at the mucocutaneous junction of the nares.

Cow 3 bluetongue case – clinically affected Friesian/Holstein cow. Focally extensive area of haemorrhage (with associated ulceration not clearly visible in this image) on the ventral surface of the tongue. There are multifocal pinpoint haemorrhages covering most of the ventral surface of the tongue

Cow 3 bluetongue case – clinically affected Friesian/Holstein cow. Focally extensive haemorrhage involving the bulbar conjunctiva with associated subconjunctival petechiation

Cow 3 bluetongue case – clinically affected Friesian/Holstein cow. Generalised lymph node enlargement with oedema