1 Some virulent bacteria produce proteins that either disrupt host cell membranes or stimulate their own endocytosis or macro-pinocytosis into host cells. 2  These virulence factors allow the bacteria to enter host cells and facilitate entry into the body across epithelial tissue layers at the body surface.
Definition of revoke for English Language Learners : to officially cancel the power or effect of (something, such as a law, license, agreement, etc.) : to make (something) not valid REVOKE Defined for Kids
Legal Definition of recall. 1  1 : a call to return a recall of workers. 2  2 : the right or procedure by which an official may be removed by vote of the people a recall petition. 3  3 : the act of revoking.  4 : a public call by a manufacturer for the return of a defective or especially unsafe product.