High quantities of multidrug-resistant Escherichia coli are present in the Machángara urban river in Quito, Ecuador

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dc.careerEscuela de Ciencias Biológicases
dc.category.authorprincipalen_US
dc.contributor.authorCrespo Pérez, María Verónica
dc.contributor.authorZurita Salinas, Lucía Jeannete
dc.contributor.correspondingZurita Salinas, Lucía Jeannete
dc.countryEcuadores
dc.date.accessioned2023-11-04T21:47:39Z
dc.date.available2023-11-04T21:47:39Z
dc.date.issued2020
dc.dedication.authorTCes
dc.description.abstractUrban river pollution by multidrug-resistant (MDR) bacteria constitutes an important public health concern. Epidemiologically important strains of MDR Escherichia coli transmissible at the human-animal-environment interfaces are especially worrying. Quantifying and characterizing MDR E. coli at a molecular level is thus imperative for understanding its epidemiology in natural environments and its role in the spread of resistance in precise geographical areas. Cefotaxime-resistant E. coli was characterized along the watercourse of the major urban river in Quito. Our results showed high quantities of cefotaxime-resistant E. coli (2.7 × 103-5.4 × 105 CFU/100 mL). The antimicrobial resistance index (ARI) revealed the exposure of the river to antibiotic contamination, and the multiple antibiotic resistance index indicated a high risk of contamination. The blaCTX-M-15 gene was the most prevalent in our samples. Isolates also had class 1 integrons carrying aminoglycoside-modifying enzymes and folate pathway inhibitors. The isolates belonged to phylogroups A, B1 and D. Clonal complex 10 was found to be the most prevalent (ST10, ST44 and ST 167), followed by ST162, ST394 and ST46. Our study provides a warning about the high potential of the major urban river in Quito for spreading the epidemiologically important MDR E. coli.en_US
dc.facultyCiencias Exactas y Naturaleses
dc.id.author1711667947
dc.id.author1703079119
dc.id.type1
dc.identifier.doihttps://doi.org/10.2166/wh.2019.195
dc.identifier.issn1477-8920
dc.identifier.issn1996-7829
dc.identifier.urihttps://repositorio.puce.edu.ec/handle/123456789/6198
dc.identifier.urihttps://iwaponline.com/jwh/article/18/1/67/71711/High-quantities-of-multidrug-resistant-Escherichia
dc.indexed.databaseScimago Journal Rankes
dc.language.isoes
dc.list.authorsOrtega, D., Barba, P., Mena, S., Espinel, N., Crespo, V., & Zurita, J.
dc.magazine.pageRange67-76
dc.magazine.titleJournal of Water and Healten_US
dc.magazine.volumeChapter18(1)
dc.rightsOpenAccessen
dc.statepublisheden_US
dc.subjectBacteriases
dc.subjectEscherichia colies
dc.subjectAguas residualeses
dc.subjectRíoses
dc.subjectBacterias
dc.subjectEscherichia coli
dc.subjectAguas residuales
dc.subjectRíos
dc.titleHigh quantities of multidrug-resistant Escherichia coli are present in the Machángara urban river in Quito, Ecuadores
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