期刊
JOURNAL OF WATER AND HEALTH
卷 11, 期 3, 页码 387-396出版社
IWA PUBLISHING
DOI: 10.2166/wh.2013.005
关键词
antibiotic-resistance; bacteriophages; enterococcal surface protein; enterococci
资金
- MBRS-RISE (NIH) [2R25GM061151-09]
- NCRR AABRE Grant [P20 RR16470]
- NIH-SCORE Grant [S06GM08102]
- NSF-CREST Grant [0206200, NINDS-SNRP U54 NS39405]
- NATIONAL CENTER FOR RESEARCH RESOURCES [P20RR016470] Funding Source: NIH RePORTER
- NATIONAL INSTITUTE OF GENERAL MEDICAL SCIENCES [T34GM007821, R25GM061151, S06GM008102] Funding Source: NIH RePORTER
- NATIONAL INSTITUTE OF NEUROLOGICAL DISORDERS AND STROKE [U54NS039405] Funding Source: NIH RePORTER
The prevalence of enterococci harboring tetracycline-and vancomycin-resistance genes, as well as the enterococcal surface protein (esp) has mostly been determined in clinical settings, but their prevalence in tropical recreational waters remains largely unknown. The present study determined the prevalence of tetM (tetracycline-resistance), vanA and vanB (vancomycin-resistance) in the bacterial and viral fractions, enterococci and their induced phages isolated from tropical recreational marine and fresh waters, dry and wet sands. Since lysogenic phages can act as vectors for antibiotic-resistance and virulence factors, the prevalence of the mentioned genes, as well as that of an integrase-encoding gene (int) specific for Enterococcus faecalis phages was determined. Up to 60 and 54% of the bacterial fractions and enterococci, respectively, harbored at least one of the tested genes suggesting that bacteria in tropical environments may be reservoirs of antibiotic-resistance and virulence genes. int was detected in the viral fractions and in one Enterococcus isolate after induction. This study presents the opportunity to determine if the presence of bacteria harboring antibiotic-resistance and virulence genes in tropical recreational waters represents a threat to public health.
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