Factors affecting virulence may include a. The presence of pathogenicity islands. b. Their ability to penetrate the host. c. The infectious dose. d. All the above (a—c) are correct.

Factors affecting virulence may include
a. The presence of pathogenicity islands.
b. Their ability to penetrate the host.
c. The infectious dose.
d. All the above (a—c) are correct.
by

1 Answer

Answer :

d. All the above (a—c) are correct.
by

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