Salmonella bacteria injectisome delivering proteins into host cell, illustration - stock illustration

Illustration of the injectisome (blue) of a Salmonella sp. bacterium injecting effector proteins (red) into a host cell. Injectisomes are part of the type three secretion system (T3SS) used by several gram-negative bacteria. The T3SS is a molecular structure which can deliver proteins into potential host cells that help make the cell susceptible to infection