[Beta-lactam antibiotic sensitivity in Aeromonas spp. of clinical, animal, and environmental origin]. / Estudio de susceptibilidad a antibióticos beta-lactámicos en Aeromonas spp. de origen clínico, animal y ambiental.
Rev Argent Microbiol
; 33(1): 47-51, 2001.
Article
en Es
| MEDLINE
| ID: mdl-11407020
ABSTRACT
Susceptibility to beta-lactam antibiotics was investigated in Aeromonas spp. Microorganisms were isolated from both, clinical and water creek samples, as well as from processed raw chicken carcasses. Aeromonas like colonies were identified by means of Aerokey II and API 20 E System (Bio-Merieux). A. hydrophila prevailed both of human origin (44%) and water creek samples (41%), while A. caviae ranked first among raw chicken samples (65%). Dilution testing by Agar Method was performed to determine minimum inhibitory concentration (MIC), following NCCLS standards. All tested microorganisms were susceptible to third generation cephalosporin, cefepime, imipenem, aztreonam, and resistant to ampicillin. Only with cefepime and aztreonam exceptions, strains of human origin showed higher values of MIC90 than environmental ones. These results suggest that antibiotic resistance is mainly due to a steady environmental pressure, on account of the widely used above mentioned compounds.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Microbiología del Agua
/
Infecciones por Bacterias Gramnegativas
/
Resistencia betalactámica
/
Aeromonas
/
Antibacterianos
Tipo de estudio:
Diagnostic_studies
/
Guideline
Límite:
Animals
/
Humans
País/Región como asunto:
America do sul
/
Argentina
Idioma:
Es
Revista:
Rev Argent Microbiol
Año:
2001
Tipo del documento:
Article