Which of the Following Contributes to the Virulence of a Bacterium

Question

Which of the following contributes to the virulence of a bacterium?
A)Presence of a capsule.
B)Presence of attachment pili.
C)Production of toxins.
D)Invasiveness.
E)All of the above.

Accepted Answer

All of the listed characteristics can contribute to the virulence of a bacterium. The capsule can prevent phagocytosis by host immune cells, attachment pili allow the bacterium to adhere to host cells or surfaces, toxins can damage host tissues or impair immune function, and invasiveness allows the bacterium to enter and multiply within host tissues.