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
Article
ي En
| LILACS
| ID: lil-544631
المكتبة المسؤولة:
BR1.1
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.
Key words
النص الكامل:
1
الفهرس:
LILACS
الموضوع الرئيسي:
Vibrio cholerae
/
Integrons
نوع الدراسة:
Prognostic_studies
المحددات:
Humans
البلد/الأقليم حسب الموضوع:
America do sul
/
Brasil
اللغة:
En
مجلة:
Mem. Inst. Oswaldo Cruz
موضوع المجلة:
MEDICINA TROPICAL
/
PARASITOLOGIA
السنة:
2010
نوع:
Article