Multiple choice

Which of the following diseases cannot be prevented by prior injection of killed or weakened microbe in a healthy body?

  1. Malaria

  2. Smallpox

  3. Hepatitis

  4. Cholera

  5. Tuberculosis

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A Correct answer
Explanation

The process of introduction of killed or weakened microbe in a healthy body is called vaccination. No vaccination is available for malaria. 

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