Abstract:
:Sorbitol-MacConkey medium has become widely used for the isolation of verotoxigenic (VT+) Escherichia coli O157. However, many organisms other than VT+ E. coli O157, especially other serogroups of E. coli and Proteus spp., may not ferment sorbitol, and thus may be confused initially with VT+ E. coli O157. Rhamnose is not fermented by VT+ E. coli O157, but is by most sorbitol non-fermenting E. coli of other serogroups. Cefixime is a cephalosporin antibiotic that is more active against Proteus spp. than against E. coli. Inclusion of rhamnose and cefixime in sorbitol-MacConkey agar improves its selectivity for the isolation of VT+ E. coli O157.
journal_name
J Med Microbioljournal_title
Journal of medical microbiologyauthors
Chapman PA,Siddons CA,Zadik PM,Jewes Ldoi
10.1099/00222615-35-2-107subject
Has Abstractpub_date
1991-08-01 00:00:00pages
107-10issue
2eissn
0022-2615issn
1473-5644journal_volume
35pub_type
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