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Studies on ampicillin resistance in Achromobacter xylosoxidans. Brief report.

Authors :
Gahrn-Hansen B
Siboni K
Source :
APMIS : acta pathologica, microbiologica, et immunologica Scandinavica [APMIS] 1988 Feb; Vol. 96 (2), pp. 185-7.
Publication Year :
1988

Abstract

Population analyses of susceptibility to ampicillin in ampicillin-susceptible and ampicillin-resistant strains of Achromobacter xylosoxidans revealed the existence of ampicillin-resistant subpopulations in ampicillin-susceptible isolates. Bacteria resistant to a concentration four times the one that inhibited the majority population had a frequency of 10(-3) to 10(-4). Strains isolated from aqueous environments are often found susceptible to ampicillin, while sporadic cases of infections with A. xylosoxidans are often caused by ampicillin-resistant strains. We suggest that the isolation from clinical specimens of ampicillin-susceptible strains, therefore, may be an indication of nosocomial infections due to recently contaminated aqueous solutions or medical equipment.

Details

Language :
English
ISSN :
0903-4641
Volume :
96
Issue :
2
Database :
MEDLINE
Journal :
APMIS : acta pathologica, microbiologica, et immunologica Scandinavica
Publication Type :
Academic Journal
Accession number :
3345263