Avian botulism is caused by which organism?

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Study for the New York State Wildlife Rehabilitation Exam. Prepare with flashcards and multiple-choice questions, each with explanations. Get ready for your certification!

Multiple Choice

Avian botulism is caused by which organism?

Explanation:
Avian botulism is caused by the botulinum neurotoxin produced by Clostridium botulinum, an obligate anaerobe that forms spores. In wetland birds, this toxin is produced in decaying organic matter and then ingested, leading to rapid, progressive flaccid paralysis often seen as “limber neck.” The toxin blocks the release of acetylcholine at the neuromuscular junction, which disrupts nerve signaling and muscle contraction. Other bacteria listed do not produce the botulinum toxin responsible for avian botulism; Bacillus cereus, Escherichia coli, and Staphylococcus aureus are associated with different toxins and disease processes.

Avian botulism is caused by the botulinum neurotoxin produced by Clostridium botulinum, an obligate anaerobe that forms spores. In wetland birds, this toxin is produced in decaying organic matter and then ingested, leading to rapid, progressive flaccid paralysis often seen as “limber neck.” The toxin blocks the release of acetylcholine at the neuromuscular junction, which disrupts nerve signaling and muscle contraction. Other bacteria listed do not produce the botulinum toxin responsible for avian botulism; Bacillus cereus, Escherichia coli, and Staphylococcus aureus are associated with different toxins and disease processes.

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