Multiple choice

Cholera bacillus is a bacterial species that produces a soluble exotoxin and causes cholera in humans. Who among the following scientists is credited with the first production of live, but non-virulent forms of chicken cholera bacillus?

  1. Pasteur

  2. Salk

  3. Jenner

  4. Montague

  5. Sabin
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A Correct answer
Explanation

A culture of chicken cholera bacillus accidentally left on bench during warm summer months lost much of its ability to cause disease, but could protect birds from the effects of fresh virulent bacillus. Pasteur also obtained similar results for anthrax and rabies.

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