2001
DOI: 10.1056/nejm200101183440305
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Use of Molecular Subtyping in Surveillance forSalmonella entericaSerotype Typhimurium

Abstract: Routine molecular subtyping of S. enterica serotype typhimurium by PFGE can improve the detection of outbreaks and aid in the identification of multidrug-resistant strains. Combining routine molecular subtyping with a method of rapid communication among public health authorities can improve surveillance for S. enterica serotype typhimurium infections.

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Cited by 101 publications
(77 citation statements)
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“…The distribution of PFGE profiles in relation to the phage types is shown in Table. It has been demonstrated that PFGE analysis can separate different Salmonella serotypes into distinct clusters (Liebana et al 2001, Peters et al 2003, also known as an inter-serotype discrimination. For strains belonging to one particular serotype, PFGE discriminates the ones associated with foodborne outbreaks from the ones isolated from sporadic cases of intestinal or extraintestinal infections denoting intra-serotype discrimination (Bender et al 2001). The results obtained in this study showed a genetic diversity among all studied strains because they were isolated in a 10-year period and they were not associated with foodborne outbreaks.…”
mentioning
confidence: 59%
“…The distribution of PFGE profiles in relation to the phage types is shown in Table. It has been demonstrated that PFGE analysis can separate different Salmonella serotypes into distinct clusters (Liebana et al 2001, Peters et al 2003, also known as an inter-serotype discrimination. For strains belonging to one particular serotype, PFGE discriminates the ones associated with foodborne outbreaks from the ones isolated from sporadic cases of intestinal or extraintestinal infections denoting intra-serotype discrimination (Bender et al 2001). The results obtained in this study showed a genetic diversity among all studied strains because they were isolated in a 10-year period and they were not associated with foodborne outbreaks.…”
mentioning
confidence: 59%
“…Esta diversidad, representada por los subtipos de PFGE, probablemente muestra que las infecciones proceden de diferentes fuentes (10). Así, siempre que exista una estrecha relación epidemiológica, el hallazgo de aislamientos con perfiles de PFGE indistinguibles en este serotipo podría evidenciar la relación con un brote (14).…”
Section: Discussionunclassified
“…El alto poder discriminatorio de la PFGE aplicada a los 468 aislamientos de S. Typhimurium estudiados no constituyó una sorpresa, ya que la PFGE ha sido exitosa en la subtipificación de Salmonella spp., según se informa en varios estudios (10,13,(24)(25)(26). Nuestro estudio confirma que, en las regiones donde S. Typhimurium es altamente endémico, la PFGE es de gran utilidad epidemiológica para la caracterización y comparación de aislamientos de este serotipo, a diferencia de los métodos de vigilancia convencionales que carecen de la sensibilidad para detectar aislamientos relacionados con brotes de S.Typhimurium, especialmente cuando involucran un número reducido de casos con cercanía en el tiempo.…”
Section: Discussionunclassified
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“…If the PFGE patterns of isolates from > 2 persons are indistinguishable, the responsible bacteria may be related to a common source ( 1 3 ) . PulseNet is a network of public health laboratories coordinated by the Centers for Disease Control and Prevention (CDC), in which bacteria that cause foodborne diseases, including Salmonella isolates, are analyzed by using PFGE.…”
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confidence: 99%