Alcaligenes faecalis Castellani and Chalmers
Synonymy.—Bacillus faecalis alkaligenes; Bacillus alcaligenes faecalis; B. alcaligenes faecalis.
Habitat.—Intestinal canal of man. Has been isolated from feces, abscesses related to intestinal canal, and occasionally in the bloodstream. However, it is generally considered nonpathogenic.
Natural vectors.—Blaberus craniifer, U.S.A. (Wedberg et al., 1949): Isolated from feces.
Blatta orientalis, Poland (Nicewicz et al., 1946): Isolated from intestinal tract.
Blattella germanica, U.S.A. (Janssen and Wedberg, 1952): From intestinal tract and feces.
Periplaneta americana, U.S.A. (Bitter and Williams, 1949): Isolated from intestinal tract.
Cockroaches [presumably Blatta orientalis, Blattella germanica and/or Periplaneta americana], Egypt (El-Kholy and Gohar, 1945): From suspensions of macerated whole insects.