Antibiotic-resistance and virulence genes in Enterococcus isolated from tropical recreational waters.

Imagen de Tasha Marie Santiago Rodriguez
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TítuloAntibiotic-resistance and virulence genes in Enterococcus isolated from tropical recreational waters.
Publication TypeJournal Article
Year of Publication2013
AutoresSantiago-Rodriguez, TM, Rivera, JI, Coradin, M, Toranzos, GA
JournalJ Water Health
Volume11
Issue3
Pagination387-96
Date Published2013 Sep
ISSN1477-8920
Palabras claveDNA, Bacterial, Enterococcus faecalis, Polymerase Chain Reaction, Puerto Rico, Recreation, Silicon Dioxide, Tetracycline Resistance, Tropical Climate, Vancomycin Resistance, Virulence, Water Microbiology
Abstract

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.

DOI10.2166/wh.2013.005
Alternate JournalJ Water Health
PubMed ID23981868
PubMed Central IDPMC4096248
Grant List2R25GM061151-09 / GM / NIGMS NIH HHS / United States
P20 RR16470 / RR / NCRR NIH HHS / United States
R25 GM061151 / GM / NIGMS NIH HHS / United States
S06GM08102 / GM / NIGMS NIH HHS / United States
T34 GM007821 / GM / NIGMS NIH HHS / United States