Bovine Tetanus Study Guide
Overview and Clinical Importance
Tetanus is an acute, often fatal neurologic disease caused by the neurotoxin tetanospasmin produced by Clostridium tetani, a gram-positive, spore-forming, obligate anaerobic bacterium. While cattle are relatively more resistant to tetanus toxin compared to horses and sheep, the disease remains an important differential diagnosis in bovine practice and can cause significant losses during outbreaks associated with management procedures.
The disease is characterized by spastic paralysis resulting from the toxin's blockade of inhibitory neurotransmitter release in the central nervous system. Understanding the pathophysiology, clinical presentation, and management of tetanus is essential for veterinary practice and is a high-yield topic for the NAVLE examination.
Etiology
Causative Agent
Clostridium tetani is a gram-positive, spore-forming, obligate anaerobic rod bacterium. Key characteristics include:
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