Multiple choice

A virus causes which of these diseases?

  1. Impetigo

  2. Cholera

  3. Salmonella

  4. HIV
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

HIV (Human Immunodeficiency Virus) is caused by a virus. Impetigo and Salmonella are caused by bacteria, and cholera is also caused by a bacterium.

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