Multiple choice

Marck's disease affects

  1. only cows

  2. goats and sheep

  3. poultry

  4. only elephants
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Marek's disease is a highly contagious viral disease that specifically affects poultry, particularly chickens. It causes tumors in nerves and organs. The disease does not affect cows, goats, sheep, or elephants - these are different species with different disease susceptibilities. It's a major concern in poultry farming worldwide.

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