Chloramphenicol resistance in clinical isolates of Yersinia enterocolitica serotype 0:3 biotype 4

The authors studied the antibiotic susceptibility of 144 Y. enterocolitica serotype 0:3 biotype 4 strains isolated from diarrhoeal stools, mainly from children, by the Kirby Bauer method with an inoculum of 5 x 10 super(7)-10 super(8) cfu/ml. Resistance to chloramphenicol, with no inhibition zone ro...

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Bibliographic Details
Published in:Journal of antimicrobial chemotherapy 1988-04, Vol.21 (4), p.506-508
Main Authors: TRALLERO, EMILIO PÉREZ, EGUILUZ, GUSTAVO CILLA, EGANA, MERCEDES URBIETA
Format: Article
Language:English
Subjects:
Antibacterial agents
Antibiotics. Antiinfectious agents. Antiparasitic agents
Biological and medical sciences
Chloramphenicol Resistance
Medical sciences
Pharmacology. Drug treatments
Serotyping
Yersinia enterocolitica
Yersinia enterocolitica - classification
Yersinia enterocolitica - drug effects
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Summary:The authors studied the antibiotic susceptibility of 144 Y. enterocolitica serotype 0:3 biotype 4 strains isolated from diarrhoeal stools, mainly from children, by the Kirby Bauer method with an inoculum of 5 x 10 super(7)-10 super(8) cfu/ml. Resistance to chloramphenicol, with no inhibition zone round a 30 mu g disc, was seen in 12 isolates. Later susceptibility studies by the agar dilution method, with Isosensitest agar and an inoculum of 10 super(4) cfu showed a chloramphenicol MIC of greater than or equal to 64 mg/l for these twelve strains. The MIC for the other 132 strains was mu 8 mg/l (MIC sub(50), 4 mg/l/ MIC sub(90), 8 mg/l). All the chloramphenicol-resistant strains of Y. enterocolitica were resistant to streptomycin and sulphonamides.
ISSN:0305-7453
1460-2091
DOI:10.1093/jac/21.4.506