2017
Vancomycin-resistant enterococci with vanA gene in treated municipal wastewater and their association with human hospital strains
ORAVCOVA, Veronika; Matúš MIHALČIN; Jana ZAKOVA; Lucie POSPISILOVA; Martina MASARIKOVA et al.Základní údaje
Originální název
Vancomycin-resistant enterococci with vanA gene in treated municipal wastewater and their association with human hospital strains
Autoři
ORAVCOVA, Veronika; Matúš MIHALČIN ORCID; Jana ZAKOVA; Lucie POSPISILOVA; Martina MASARIKOVA a Ivan LITERAK
Vydání
Science of the Total Environment, Amsterdam, Elsevier Science, 2017, 0048-9697
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10511 Environmental sciences
Stát vydavatele
Nizozemské království
Utajení
není předmětem státního či obchodního tajemství
Impakt faktor
Impact factor: 4.610
Označené pro přenos do RIV
Ano
Kód RIV
RIV/00216224:14110/17:00097302
Organizační jednotka
Lékařská fakulta
UT WoS
EID Scopus
Klíčová slova anglicky
Antibiotic resistance; Clostridium difficile; Glycopeptides; Gull; Hospital Wastewater treatment plant
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 17. 5. 2018 16:26, Soňa Böhmová
Anotace
V originále
Vancomycin-resistant enterococci (VRE) are pathogens of increasing medical importance. In Brno, Czech Republic, we collected 37 samples from the effluent of a wastewater treatment plant (WWTP), 21 surface swabs from hospital settings, and 59 fecal samples from hospitalized patients and staff. Moreover, we collected 284 gull cloacal swabs from the colony situated 35 km downstream the WWTP. Samples were cultured selectively. Enterococci were identified using MALDI-TOF MS, phenotypically tested for susceptibility to antibiotics, and by PCR for occurrence of resistance and virulence genes. Pulsed-field gel electrophoresis (PFGE) and multi-locus sequence typing (MLST) were used to examine genotypic diversity. VRE carrying the vanA gene were found in 32 (86%, n = 37) wastewater samples, from which we obtained 49 isolates: Enterococcus faecium (44) and Enterococcus gallinarum (2), Enterococcus casseliflavus (2), and Enterococcus raffinosus (1). From 33 (69%) of 48 inpatient stool samples, we obtained 39 vanA-carrying VRE, which belonged to E. faecium (33 isolates), Enterococcus faecalis (4), and Enterococcus raffinosus (2). Nearly one-third of the samples from hospital surfaces contained VRE with the vanA gene. VRE were not detected among gulls. Sixty-seven (84%, n = 80) E. faecium isolates carried virulence genes hyl and/or esp. Virulence of E. faecalis was encoded by gelE, asa1, and cylA genes. A majority of the E. faecium isolates belonged to the clinically important sequence types ST17 (WWTP: 10 isolates; hospital: 4 isolates), ST18 (9;8), and ST78 (5;0). The remaining isolates belonged to ST555 (2;0), ST262 (1;6), ST273 (3;0), ST275 (1;0), ST549 (2;0), ST19 (0;1), ST323 (3;0), and ST884 (7;17). Clinically important enterococci carrying the vanA gene were almost continually detectable in the effluent of the WWTP, indicating insufficient removal of VRE during wastewater treatment and permanent shedding of these antibiotic resistant pathogens into the environment from this source. This represents a risk of their transmission to the environment.
Návaznosti
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