Which is not the virulent factors of T.pallidum ?
A. flagellum;
B. Adhesins;
C. Hyaluronidase;
D. endotoxin;
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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
Each statement is right about TP infection EXCEPT _____?
A. Heart failure may proceed in tertiary phase.
B. A chancre lesion is reddened ulcer filled with TP in Phase II.
C. TP can invade the bloodstream and spreadsystemically.
D. Widely spread rash lesions are filled with spirochetes and extremely contagious in second phase.
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