Escherichia freundii (Braak) Yale
Habitat.—Soil, water, intestinal canal of man and other animals.
Natural vectors.—Blaberus craniifer, U.S.A. (Wedberg et al., 1949): From feces.
Blattella germanica, U.S.A. (Janssen and Wedberg, 1952): From intestinal canal and feces.
Periplaneta americana, U.S.A. (Bitter and Williams, 1949): From intestinal tract.