Que.

In Schick test reaction is considered as positive when

  • A. No reaction of any kind on either arm after administration of Schick test toxin
  • B. When test arm shows red flush of 10-50 mm diameter within 24-36 hours after administration of Schick test toxin
  • C. Both
  • D. None of these

Right Answer is :
✓ B. When test arm shows red flush of 10-50 mm diameter within 24-36 hours after administration of Schick test toxin
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