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Since the establishment of the well-known Tenover criteria in 1995 (Tenover et al., 1995), relatively few papers have been published about the interpretation of subtyping data generated by pulsed-field gel electrophoresis (PFGE). This paper describes the approach that has been used in the...
PulseNet USA, the national molecular subtyping network for foodborne disease surveillance, began functioning in the United States in 1996 and soon established itself as a critical early warning system for foodborne disease outbreaks, particularly those in which cases may be geographically...
Listeria monocytogenes , a psychrotrophic organism capable of growing at refrigeration temperatures, is of major concern in extended shelf life, refrigerated foods. Considering that as much as 80–90% of human listeriosis cases are linked to the ingestion of contaminated food, human cases are...
Salmonella Typhi is the etiological agent of typhoid fever with 16 million annual cases estimated worldwide. In Colombia and Argentina it is a notifiable disease but many cases have only a clinical diagnosis. Molecular subtyping of S. Typhi is necessary to complement epidemiologic analysis of...
In this study, two typing methods, automated ribotyping and pulsed-field gel electrophoresis (PFGE), were evaluated for the subtyping of Listeria monocytogenes serotype 4b. The strains originated from patients and food samples collected in Austria during 2001–2005 and from Europe and North...
PulseNet USA, the American molecular subtyping network for foodborne infections, has since 1996 been highly successful combating infections caused by Shiga toxin–producing Escherichia coli (STEC) O157, Salmonella, Listeria , and Shigella spp. The PulseNet Europe feasibility study was initiated...
Argentina has a high incidence of hemolytic uremic syndrome (HUS); 12.2 cases per 100,000 children younger than 5 years old were reported in 2002. Shiga toxin (Stx)–producing Escherichia coli (STEC) is the primary etiologic agent of HUS, and STEC O157 is the predominant serogroup isolated. The...
The diversity among 1354 strains of Salmonella enterica subsp. enterica , serotype Enteritidis ( n = 847) and Typhimurium ( n = 507) isolated in Finland in 1991–2002 ( n = 608) and in 2003 ( n = 746) were studied. The former strains were studied retrospectively by phage typing and pulsed-field...
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