Pathogenic strains of Escherichia coli usually express
A) capsules.
B) colonization factor antigens (CFA).
C) plaques.
D) slime layers.

Question

Quizplus · Accepted Answer

Pathogenic strains of E. coli usually express colonization factor antigens (CFA) which help them adhere to host cells and colonize the intestines. Capsules and slime layers are features of some bacteria, but not necessarily of pathogenic strains of E. coli. Plaques are not a feature of E. coli.

Pathogenic Strains of Escherichia Coli Usually Express