You Explain to Jay That Some Pathogens Induce Non-Phagocytic Cells to Engulf

Multiple Choice

You explain to Jay that some pathogens induce non-phagocytic cells to engulf them. Gram-negative bacteria such as Salmonella often inject effector proteins that induce engulfment by host cells. In the case of Salmonella, specific proteins are delivered to intestinal epithelial cells via

A) a type I secretion system.
B) a type II secretion system.
C) a type III secretion system.
D) a type IV secretion system.
E) a type I OR a type III secretion system.