Case 1: 6 month old greyhound pup with intermittent abnormal behaviour. Case 2: Merino lamb with sudden onset of dyspnoea, depression, recumbency, tachycardia, respiratory râles and pyrexia. Case 3: 4 year old boxer presented with hindlimb paresis. Case 4: 4 year old Airedale terrier presented with progressive neurological signs. Case 5: 16 year old DSH cat with sudden onset of visual deficits, behavioural changes and circling to the right.