Sources and antimicrobial susceptibilities of Campylobacter gracilis and Sutterella wadsworthensis.

Table 2. In vitro susceptibility data for isolates of Campylobacter Sutterella wadsworthensis is a newly described gram-negagracilis and Sutterella wadsworthensis. tive, asaccharolytic, microaerophilic rod that can be confused with Campylobacter gracilis. The description of S. wadsworC. gracilis (n Å 10) S. wadsworthensis (n Å 19) thensis was based on 20 strains isolated from appendiceal tissue and peritoneal or abdominal fluid. C. gracilis strains (with the Antimicrobial Percent exception of one strain isolated from appendiceal tissue) have agent Range MIC90 Range MIC90 susceptible* been isolated from infections above the diaphragm [1]. The identification of these species is the result of further study of Amoxicillin/ the ‘‘Bacteroides ureolyticus group’’; these strains have been clavulanate 0.06–0.5 0.12 0.5–4 2 100 characterized as asaccharolytic, nitrate-positive organisms that Cefoxitin 1–16 2 0.5–8 4 100