Which of the Following Toxins Contributes to the Virulence of B.pertussis

question 2

Multiple Choice

Which of the following toxins contributes to the virulence of B.pertussis and works by hemolyzing red cells and activating cyclic adenosine monophosphate,which inactivates several types of host immune cells?

• A)Endotoxin
• B)Pertussis toxin
• C)Tracheal cytotoxin
• D)Adenylate cyclase toxin

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