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Harmful Bacteria and Viruses (Class XII)

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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. Sabin
  2. Montague
  3. Jenner
  4. Salk
  5. Pasteur
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