Multiple choice

Which of the following diseases is caused by a virus?

  1. Malaria

  2. Tuberculosis

  3. AIDS

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

AIDS is caused by Human Immunodeficiency Virus (HIV), a retrovirus that attacks the immune system. Malaria is caused by Plasmodium (protozoa), tuberculosis by Mycobacterium (bacteria), and diphtheria by Corynebacterium (bacteria).

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