Each statement is right about T. pallidum EXCEPT ___.
A. It is visualized by silver stain method.
B. It can grow into colony in bloody agar plate.
C. It is thin, tightly coiled, helically shaped.
D. It is Gram-negative bacteria.
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The disease caused by T. pallidum is _____.
A. enteritis;
B. syphilis;
C. urethritis;
D. gonorrhea
Which is not the virulent factors of T.pallidum ?
A. flagellum;
B. Adhesins;
C. Hyaluronidase;
D. endotoxin;
Which phases of syphilis are highly infectious ?
A. Phase I and Phase III
B. Phase I and Phase II
C. Phase II and phase III
D. All three phases
In which phase of syphilis, no lesion is detected?
A. Primary phase
B. Second phase
C. latent phase
D. tertiary phase.
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