Multiple choice

Which of the following organisms carry infection from a sick person to another potential host?

  1. Virus

  2. Bacteria

  3. Host

  4. Vector

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Disease causing organisms, i.e. causative agents are transferred from the diseased to the healthy person by an organism which itself does not get the disease. Such an agent is called a “vector”.