Case 1: Ataxia and weakness in a pit bull puppy . Case 2: Ovine liver submitted by abattoir. Case 3: Deaths in a group of experimental sheep. Case 4: Sudden death in a 7 year old Labrador . Case 5: Dalmatian with polypoid thickening of the gall bladder. Case 6: Siamese cat with inappetence, weight loss and lethargy.