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Which one of the following cannot be used for preparation of vaccines against plague?

NEET UG 2010 — Zoology Biotechnology and Its Applications

2010mcqmedium

Which one of the following cannot be used for preparation of vaccines against plague?

Official previous-year question

Held on 30 Apr 2010 · Verified 9 Jul 2026.

Options

  1. A

    Formalin-inactivated suspensions of virulent bacteria

  2. B

    Avirulent live bacteria

  3. C

    Synthetic capsular polysaccharide material

  4. D

    Heat-killed suspensions of virulent bacteria

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