Analysis of clonality and antibiotic resistance among early clinical isolates of enterococcus faecium in the United States
dc.contributor.author | Galloway-Pena, Jessica | |
dc.contributor.author | Nallapareddy, Sreedhar R. | |
dc.contributor.author | Arias, César A. | |
dc.contributor.author | Eliopoulos, George M. | |
dc.contributor.author | Beral, Valerie | |
dc.date.accessioned | 2021-02-08T19:13:25Z | |
dc.date.available | 2021-02-08T19:13:25Z | |
dc.date.issued | 2009 | |
dc.description.abstract | Antecedentes: el genogrupo de Enterococcus faecium, denominado complejo clonal 17 (CC17), parece poseer múltiples determinantes que aumentan su capacidad para sobrevivir y causar enfermedades en ambientes nosocomiales. Métodos: Utilizando 53 aislados de E. faecium de EE. UU. Clínicamente y geográficamente diversos que datan de 1971 a 1994, se determinó el tipo de secuencia multilocus; la presencia de 16 genes de virulencia putativos (hyl Efm , esp Efmy genes fms); resistencia a ampicilina (AMP) y vancomicina (VAN); y resistencia de alto nivel a gentamicina y estreptomicina. Resultados: En general, se identificaron 16 tipos de secuencia (ST) diferentes, en su mayoría aislados CC17, en 9 regiones diferentes de los Estados Unidos. Los primeros aislamientos de CC17 fueron parte de un brote que ocurrió en 1982 en Richmond, Virginia. Las características de los aislados de CC17 incluyeron aumentos en la resistencia al AMP, la presencia de hyl Efm y esp Efm., aparición de resistencia a VAN y presencia de al menos 13 de 14 genes fms. Sin embargo, ocho de 41 de los primeros aislados con resistencia a AMP no estaban en CC17. Conclusiones: Aunque no todos los primeros aislamientos de AMP de EE. UU. Estaban relacionados clonalmente, los aislamientos de E. faecium CC17 han estado circulando en los Estados Unidos desde al menos 1982 y parecen haber adquirido progresivamente determinantes adicionales de virulencia y resistencia a los antibióticos, lo que quizás explica el éxito reciente de esta especie. en el entorno hospitalario. | spa |
dc.description.abstractenglish | Background: The Enterococcus faecium genogroup, referred to as clonal complex 17 (CC17), seems to possess multiple determinants that increase its ability to survive and cause disease in nosocomial environments. Methods: Using 53 clinical and geographically diverse US E. faecium isolates dating from 1971 to 1994, we determined the multilocus sequence type; the presence of 16 putative virulence genes (hyl Efm, esp Efm, and fms genes); resistance to ampicillin (AMP) and vancomycin (VAN); and high-level resistance to gentamicin and streptomycin. Results: Overall, 16 different sequence types (STs), mostly CC17 isolates, were identified in 9 different regions of the United States. The earliest CC17 isolates were part of an outbreak that occurred in 1982 in Richmond, Virginia. The characteristics of CC17 isolates included increases in resistance to AMP, the presence of hyl Efm and esp Efm, emergence of resistance to VAN, and the presence of at least 13 of 14 fms genes. Eight of 41 of the early isolates with resistance to AMP, however, were not in CC17. Conclusions: Although not all early US AMP isolates were clonally related, E. faecium CC17 isolates have been circulating in the United States since at least 1982 and appear to have progressively acquired additional virulence and antibiotic resistance determinants, perhaps explaining the recent success of this species in the hospital environment. | eng |
dc.format.mimetype | application/pdf | |
dc.identifier.doi | https://doi.org/10.1086/644790 | |
dc.identifier.instname | instname:Universidad El Bosque | spa |
dc.identifier.issn | 1537-6613 | |
dc.identifier.reponame | reponame:Repositorio Institucional Universidad El Bosque | spa |
dc.identifier.repourl | repourl:https://repositorio.unbosque.edu.co | |
dc.identifier.uri | https://hdl.handle.net/20.500.12495/5266 | |
dc.language.iso | eng | |
dc.publisher | Infectious Diseases Society of America | spa |
dc.publisher.journal | Journal of Infectious Diseases | spa |
dc.relation.ispartofseries | Journal of Infectious Diseases, 1537-6613, Vol. 200, Nro.10, 2009, p. 1566-1573 | spa |
dc.relation.uri | https://academic.oup.com/jid/article/200/10/1566/880786 | |
dc.rights.accessrights | https://purl.org/coar/access_right/c_abf2 | |
dc.rights.accessrights | info:eu-repo/semantics/openAccess | |
dc.rights.accessrights | Acceso abierto | |
dc.rights.creativecommons | 2009 | |
dc.rights.local | Acceso abierto | spa |
dc.subject | E. faecium | spa |
dc.subject | Complejo clonal 17 | spa |
dc.subject | Tipificación de secuencias de múltiples locus | spa |
dc.subject | Resistencia a la ampicilina | spa |
dc.subject | Resistencia a la vancomicina | spa |
dc.subject.keywords | E. faecium | spa |
dc.subject.keywords | Clonal Complex 17 | spa |
dc.subject.keywords | Multi-locus sequence typing | spa |
dc.subject.keywords | Ampicillin resistance | spa |
dc.subject.keywords | Vancomycin resistance | spa |
dc.title | Analysis of clonality and antibiotic resistance among early clinical isolates of enterococcus faecium in the United States | spa |
dc.title.translated | Analysis of clonality and antibiotic resistance among early clinical isolates of enterococcus faecium in the United States | spa |
dc.type.coar | https://purl.org/coar/resource_type/c_6501 | |
dc.type.driver | info:eu-repo/semantics/article | |
dc.type.hasversion | info:eu-repo/semantics/publishedVersion | |
dc.type.local | Artículo de revista |
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