Brazilian Journal of Microbiology | |
Role of wild birds as carriers of multi-drug resistant Escherichia coli and Escherichia vulneris | |
Mohammed Y. Shobrak2  Aly E. Abo-amer1  | |
[1] ,University of Taif Faculty of Science Division of ZoologyTaif,Saudi Arabia | |
关键词: E. coli; E. vulneris; multi-drug resistance (MDR); migrating and non-migrating birds; congo red binding; hemolysin; API 20E; 16S rRNA; plasmid profile; | |
DOI : 10.1590/S1517-83822014000400010 | |
来源: SciELO | |
【 摘 要 】
Emergence and distribution of multi-drug resistant (MDR) bacteria in environments pose a risk to human and animal health. A total of 82 isolates of Escherichia spp. were recovered from cloacal swabs of migrating and non-migrating wild birds. All bacterial isolates were identified and characterized morphologically and biochemically. 72% and 50% of isolates recovered from non-migrating and migrating birds, respectively, showed positive congo red dye binding (a virulence factor). Also, hemolysin production (a virulence factor) was showed in 8% of isolates recovered from non-migrating birds and 75% of isolates recovered from migrating birds. All isolates recovered from non-migrating birds were found resistant to Oxacillin while all isolates recovered from migrating birds demonstrated resistance to Oxacillin, Chloramphenicol, Oxytetracycline and Lincomycin. Some bacterial isolates recovered from non-migrating birds and migrating birds exhibited MDR phenotype. The MDR isolates were further characterized by API 20E and 16S rRNA as E. coli and E. vulneris. MDR Escherichia isolates contain ~1-5 plasmids of high-molecular weights. Accordingly, wild birds could create a potential threat to human and animal health by transmitting MDR bacteria to water streams and other environmental sources through their faecal residues, and to remote regions by migration.
【 授权许可】
CC BY-NC
All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License
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