题目内容

Which following one of the streptococcal toxic molecules is not involved in dissemination of Streptococcus?

A. pyrogenic exotoxins ,
B. hyaluronidase,
C. Streptokinase,
D. streptodornase,

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Which is not the virulent structure molecule of streptococcus?

A. LTA,
B. M protein,
C. capsule
D. LPS

Which molecule can degrade DNA released from dead cells in abscesses, facilitating bacterial spread during streptococcal infection?

A. streptokinase,
B. streptodornase
C. hyaluronidase
D. Coagulase;

Which enzyme released by streptococcus can make a gap between the cells in the matrix, facilitating bacterial spread?

A. hyaluronidase,
B. streptodornase ,
Coagulase
D. streptokinase,

Which virulent molecule is associated with the infection of temperate phage in streptococcus?

A. Streptolysin.,
B. streptodornase,
C. pyrogenic exotoxins ,
D. hyaluronidase,