Multiple choice

Vaccine-associated paralytic poliomyelitis (VAPP) is caused by

  1. type 1 mutant strain

  2. type 2 mutant strain

  3. type 3 virulent strain

  4. type 2 wild strain
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Vaccine-associated paralytic poliomyelitis (VAPP) is caused by type 3 virulent strain. Occasionally, the mutant strains revert to virulent strain and cause polio.

Keep practicing — related questions