Occurrence and composition of class 1 and class 2 integrons in clinical and environmental O1 and non-O1/non-O139 Vibrio cholerae strains from the Brazilian Amazon
Mem. Inst. Oswaldo Cruz
;
105(2): 229-232, Mar. 2010. tab, ilus
Artigo
em Inglês
| LILACS
| ID: lil-544631
ABSTRACT
This study identified and characterised class 1 and 2 integrons in clinical and environmental Vibrio cholerae O1 and non-O1/non-O139 strains isolated from the Brazilian Amazon. The aadA2 and aadA7 gene cassettes were found in class 1 integrons in two genotypes of environmental V. cholerae non-O1/non-O139. Empty integrons were found in strains from the Brazilian cholera epidemic. A class 2 integron was detected in one strain from the V. cholerae Amazonia lineage harbouring sat1 and aadA1 genes. All isolates were resistant to aminoglycosides, indicating aadA functionality. These findings suggest that environmental bacteria act as cassette reservoirs that favour the emergence of resistant pathogens.
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Vibrio cholerae
/
Integrons
Tipo de estudo:
Estudo prognóstico
Limite:
Humanos
País/Região como assunto:
América do Sul
/
Brasil
Idioma:
Inglês
Revista:
Mem. Inst. Oswaldo Cruz
Assunto da revista:
Medicina Tropical
/
Parasitologia
Ano de publicação:
2010
Tipo de documento:
Artigo
País de afiliação:
Brasil
Instituição/País de afiliação:
Fiocruz/BR
/
Instituto Evandro Chagas/BR
/
Laboratório de Microbiologia Ambiental/BR
Similares
MEDLINE
...
LILACS
LIS