

MCQOPTIONS
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1. |
Type III secretion systems are used to inject "effector" proteins directly into a host cell. uses a type III secretion system to help the pathogen to |
A. | survive the acid pH of the stomach |
B. | secrete LT (heat labile toxin) and ST (heat stable toxin) into the lumen of the intestine |
C. | survive within macrophages |
D. | activate T cells to proliferate and secrete cytokines |
Answer» D. activate T cells to proliferate and secrete cytokines | |