Comparison of Hektoen and Salmonella-Shigella agar on 6033 stools of animal agent submitted for accepted abreast of Salmonella sp. and Shigella sp

  From 1989 through 1991, 6033 stool specimens from patients at Orleans Hospital (France), were able for enteric pathogens. Hektoen agar (HE) was compared with Salmonella-Shigella agar (SS) afterwards absolute streaking and afterwards brief accessory in Mueller-Kauffmann broth. Yersinia strains were not computed. Seven strains of Salmonella serotype Typhi were isolated, on both media, and afar from computations for discussed reasons.

  Out of a absolute of 9 Shigella strains, HE abandoned 9 and SS abandoned 7. No statistically cogent aberration appeared about abreast of non-Typhi Salmonella strains (127 vs 114 from absolute streaking, 237 vs 243 afterwards enrichment). Predictive ethics of apprehensive colonies were not statistically different. Numbers of apocryphal positives were not different, except for atramentous centred colonies of the absolute streaking (231 on HE vs 186 on SS, p beneath than 0.05).

  The accomplishment of technologists was not taken into annual but was begin acceptable to be added authentic on SS agar. This abstracts advance that, back the abundance of Shigella sp became abundant lower, the cogwheel of ability of HE vs SS agar is no best accessible in animal medical routine.