Choose the correct preposition to complete the sentence:

The medical council confirmed that vaccinated individuals are largely immune _____ that strain of viral infection.

Answer and explanation

Correct answer: A. immune to infection

  1. Step 1: The adjective 'immune' in physiological contexts is followed by the preposition 'to' ('immune to the virus').
  2. Step 2: When referring to prosecution or legal liability, 'immune from' is used, but biological resistance takes 'to'.
Answer
to.
Why not the others: 'Immune from' applies to legal exemptions; 'immune with' is ungrammatical.

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