The disease caused by T. pallidum is _____.
A. enteritis;
B. syphilis;
C. urethritis;
D. gonorrhea
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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.
In Which phase does lesion of changcre occur?
A. Primary phase
B. Second phase
C. Latent phase
D. Tertiary phase