What is the ultimate cause of death in severe, untreated krait envenomation?
Answer
Respiratory failure
The ascending paralysis caused by the neurotoxic venom can progress until it affects the muscles controlling breathing, leading to respiratory failure if antivenom is not administered.

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Banded krait, a large deadly venomous snake which kills other snakes
WORLD'S RAREST KRAIT! Extremely venomous & beautiful!
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