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- W4251985295 abstract "In a patient with Serratia marcescens bacteraemia, a variant resistant to cefotaxime and amikacin was isolated in a blood culture under combined treatment with cefotaxime and amikacin. In addition, in vitro selection on cefotaxime and/or amikacin yielded resistant mutants from the sensitive parent strain. These mutants displayed the same type of cross-resistance as the clinical strain to all β-lactam and aminoglycoside antibiotics. The mechanisms for this resistance was a decrease in the permeability of the cell. To our knowledge, the isolation of such strains from blood cultures and the mechanism responsible for this ⪡ broad-spectrum resistance ⪢ have not been previously described. Chez un patient traité par l'association céfotaxime et amikacine pour une septicémie à Serratia marcescens sensible à ces antibiotiques, un mutant se développant en petites colonies et résistant à la céfotaxime et à l'amikacine a été isolé dans une hémoculture. Des mutants ayant les même type de résistance croisée à toutes les β-lactamines et à tous les aminoglycosides ont été isolés in vitro après sélection de la souche parentale sensible sur céfotaxime et amikacine, seuls ou associés. Le mécanisme responsible de ce type de résistance est une diminution de la perméabilité de la paroi bactérienne. A notre connaissance, l'isolement de telles souches à partir d'hémocultures ou sélectionnés in vitro ainsi que le mécanisme responsable de cette résistance n'ont jamais été rapportés." @default.
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- W4251985295 date "1983-05-01" @default.
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- W4251985295 title "In vivo and in vitro emergence of simultaneous resistance to both β-lactam and aminoglycoside antibiotics in a strain of Serratia marcescens" @default.
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- W4251985295 doi "https://doi.org/10.1016/0769-2609(83)90008-x" @default.
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