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Detección y caracterización de Escherichia coli O157 de ganado bovino faenado en frigoríficos de la Argentina
Del Castillo, Lourdes (Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata, 2014)El principal objetivo fue estimar la prevalencia y caracterizar las E. coli O157 de ganado vacuno faenado en Argentina. Se recolectaron un total de 1622 muestras de heces y carcasas en 9 frigoríficos de exportación. Todas ... -
Escenarios sobre calidad e inocuidad en el sector productor de materias primas y alimentos elaborados en Argentina 2030
Dominguez, Marta Susana; Kleiman, Elizabeth; Vitale Gutierrez, Javier Alejandro; Vaudagna, Sergio Ramon; Masana, Marcelo Oscar (Ministerio de Ciencia, Tecnología e Innovación Productiva, 2016)El presente documento constituye una Síntesis Ejecutiva del Informe Final del proyecto Escenarios sobre exigencias de calidad e inocuidad en el sector productor de materias primas y alimentos elaborados en Argentina para ... -
Frequency, characterization and genotypic analysis of Shiga toxin-producing Escherichia coli in beef slaughterhouses of Argentina = Frecuencia, caracterización y análisis genotípico de Escherichia coli productor de toxina Shiga en frigoríficos de carne bovina de Argentina
Cap, Mariana; Carbonari, Claudia Carolina; D’Astek, Beatriz A.; Zolezzi, Gisela; Deza, Natalia; Palladino, Pablo Martin; Masana, Marcelo Oscar; Chinen, Isabel; Rivas, Marta (2018-06-22)The objectives of this study were: (1) to estimate STEC frequency in hide and carcass samples taken from beef slaughterhouses supplying the domestic market in Argentina, (2) to establish the pheno-genotypic characteristics ... -
Genetic features of human and bovine Escherichia coli O157: H7 strains isolated in Argentina
Masana, Marcelo Oscar; Pianciola, Luis; D’Astek, Beatriz A.; Mazzeo, Melina Leonor; Chinen, Isabel; Rivas, Marta (2016-02-15)Shiga toxin-producing Escherichia coli (STEC) are important food-borne pathogens associated with human diseases. In Argentina, O157:H7 is the dominant serotype in hemolytic uremic syndrome (HUS) cases. Previously, we have ... -
Genotypic Characterization of Non-O157 Shiga Toxin–Producing Escherichia coli in Beef Abattoirs of Argentina
Masana, Marcelo Oscar; D’Astek, Beatriz A.; Palladino, Pablo Martin; Galli, Lucia; Del Castillo, Lourdes; Carbonari, Claudia Carolina; Leotta, Gerardo A.; Vilacoba, E.; Irino, K.; Rivas, Marta (2011-12)The non-O157 Shiga toxin–producing Escherichia coli (STEC) contamination in carcasses and feces of 811 bovines in nine beef abattoirs from Argentina was analyzed during a period of 17 months. The feces of 181 (22.3%) bovines ... -
High pressure treatments combined with sodium lactate to inactivate Escherichia coli O157:H7 and spoilage microbiota in cured beef carpaccio
Masana, Marcelo Oscar; Barrio, Yanina Ximena; Palladino, Pablo Martin; Sancho, Ana Maria; Vaudagna, Sergio Ramon (Elsevier, 2014-10-22)High-pressure treatments (400 and 600 MPa) combined with the addition of sodium lactate (1 and 3%) were tested to reduce Escherichia coli O157:H7 (STEC O157) and spoilage microbiota contamination in a manufactured cured ... -
High pressure treatments combined with sodium lactate to inactivate Escherichia coli O157:H7 and spoilage microbiota in cured beef carpaccio
Masana, Marcelo Oscar; Barrio, Yanina Ximena; Palladino, Pablo Martin; Sancho, Ana Maria; Vaudagna, Sergio Ramon (2015-04)High-pressure treatments (400 and 600 MPa) combined with the addition of sodium lactate (1 and 3%) were tested to reduce Escherichia coli O157:H7 (STEC O157) and spoilage microbiota contamination in a manufactured cured ... -
Risk factors for shiga toxin-producing Escherichia coli-associated human diseases
Rivas, Marta; Chinen, Isabel; Miliwebsky, Elizabeth; Masana, Marcelo Oscar (American Society for Microbiology, 2014)We have reviewed the risk factors for the occurrence of Shiga toxin-producing Escherichia coli (STEC)-associated human diseases. The analysis of STEC surveillance data and trends shows differences in frequency and severity ... -
Subtyping of Escherichia coli O157:H7 Strains Isolated from Human Infections and Healthy Cattle in Argentina
Del Castillo, Lourdes; D’Astek, Beatriz A.; Miliwebsky, Elizabeth; Carbonari, Claudia Carolina; Palladino, Pablo Martin; Deza, Natalia; Chinen, Isabel; Manfredi, Eduardo; Leotta, Gerardo A.; Masana, Marcelo Oscar; Rivas, Marta (Mary Ann Liebert, Inc., 2012-05-02)Shiga toxin–producing Escherichia coli (STEC) cause nonbloody (NBD) and bloody diarrhea (BD), and hemolytic uremic syndrome (HUS). Cattle have been described as their main reservoir. STEC O157:H7 is recognized as the ... -
Whole-Genome Sequencing Applied to the Molecular Epidemiology of Shiga Toxin-Producing Escherichia coli O157:H7 in Argentina
Masana, Marcelo Oscar; Carbonari, Claudia Carolina; Fittipaldi, Nahuel; Teatero, Sarah; Athey, Taryn B.T.; Pianciola, Luis; Melano, Roberto G.; Rivas, Marta; Chinen, Isabel (American Society for Microbiology, 2016-10-07)Shiga toxin-producing Escherichia coli strains are worldwide associated with sporadic human infections and outbreaks. In this work, we report the availability of high-quality draft whole-genome sequences for 19 O157:H7 ...