High prevalence of multidrug-tolerant bacteria and associated antimicrobial resistance genes isolated from ornamental fish and their carriage water.
PLoS One
; 4(12): e8388, 2009 Dec 21.
Article
en En
| MEDLINE
| ID: mdl-20027306
ABSTRACT
BACKGROUND:
Antimicrobials are used to directly control bacterial infections in pet (ornamental) fish and are routinely added to the water these fish are shipped in to suppress the growth of potential pathogens during transport. METHODOLOGY/PRINCIPALFINDINGS:
To assess the potential effects of this sustained selection pressure, 127 Aeromonas spp. isolated from warm and cold water ornamental fish species were screened for tolerance to 34 antimicrobials. Representative isolates were also examined for the presence of 54 resistance genes by a combination of miniaturized microarray and conventional PCR. Forty-seven of 94 Aeromonas spp. isolates recovered from tropical ornamental fish and their carriage water were tolerant to > or =15 antibiotics, representing seven or more different classes of antimicrobial. The quinolone and fluoroquinolone resistance gene, qnrS2, was detected at high frequency (37% tested recent isolates were positive by PCR). Class 1 integrons, IncA/C broad host range plasmids and a range of other antibiotic resistance genes, including floR, bla(TEM-1), tet(A), tet(D), tet(E), qacE2, sul1, and a number of different dihydrofolate reductase and aminoglycoside transferase coding genes were also detected in carriage water samples and bacterial isolates.CONCLUSIONS:
These data suggest that ornamental fish and their carriage water act as a reservoir for both multi-resistant bacteria and resistance genes.
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Microbiología del Agua
/
Aeromonas
/
Farmacorresistencia Bacteriana Múltiple
/
Peces
/
Genes Bacterianos
/
Antiinfecciosos
Tipo de estudio:
Prevalence_studies
/
Risk_factors_studies
Límite:
Animals
Idioma:
En
Revista:
PLoS One
Asunto de la revista:
CIENCIA
/
MEDICINA
Año:
2009
Tipo del documento:
Article
País de afiliación:
Reino Unido