Clostridial Diseases

Question 1

Clostridium haemolyticum:
- Species effected
- Predisposing Factors
- Affects (3)

Answer 1

• Species effected: Cattle/Sheep
• Predisposing Factors: Damage to liver by the Fluke, Fasciola hepatica
• Affects: Hemoglobinuria, icterus, anemia

Question 2

Clostridium chauvoei
- Species effected
- Predisposing Factors
- Key features/Facts

Answer 2

• Species effected: Mainly sheep, also cattle
• Predisposing Factors: Damage or bruising to muscles from transport, injections, rough handling
• Key features/Facts: Crackling of swollen lesions when touched, rancid butter odor on postmortem

Question 3

Clostridium septicum
- Species effected
- Predisposing Factors
- Key features/Facts

Answer 3

• Species effected:
• Predisposing Factors: Mainly sheep, also cattle
  and goats
• Key features/Facts: Deep wounds such as bites, surgical sites, parturition injuries

Question 4

Clostridium perfringens type D
- Species effected
- Predisposing Factors
- Key features/Facts

Answer 4

• Species effected: Sheep, cattle, and goats
• Predisposing Factors: Increase in dietary intake
• Key features/Facts: Associated with overeating. “Pulpy kidneys” due to rapid postmortem decomposition

Question 5

• Species effected
• Predisposing Factors
• Key features/Facts

Answer 5

• Species effected: Mainly cattle
• Predisposing Factors: Increase in dietary intake
• Key features/Facts: “Purple gut” with sections of extremely reddened small bowel filled with hemorrhagic fluid

Question 6

Clostridium novyi type B
- Species effected
- Predisposing Factors
- Key features/Facts

Answer 6

• Species effected: Mainly sheep, also cattle
• Predisposing Factors: Damage to liver by the fluke Fasciola hepatica
• Key features/Facts: Large necrotic black lesion in liver

Question 7

Clostridium tetani
- Species effected
- Predisposing Factors
- Key features/Facts

Answer 7

• Species effected: Mainly horses and pigs, all animals
• Predisposing Factors: Puncture wound
• Key features/Facts: General body stiffness; sensitivity to noise, sound, and movement

Question 8

Clostridium botulinum
- Species effected
- Predisposing Factors
- Key features/Facts

Answer 8

• Species effected: Uncommon in animals
• Predisposing Factors: Ingestion of preformed toxin in feed
• Key features/Facts: Ascending paralysis

Question 9

Clostridium sordellii
- Species effected
- Predisposing Factors
- Key features/Facts

Answer 9

• Species effected: Cattle
• Predisposing Factors: Unknown
• Key features/Facts: Sudden death syndrome