Now showing items 1-20 of 20

    • Lapierre Acevedo, Lisette; Gatica, María A.; Riquelme Retamal, Víctor; Vergara Escobar, Constanza; Yáñez López, José; San Martín Núñez, Betty; Sáenz Iturriaga, Leonardo Enrique; Vidal, Maricel; Martínez, María Cristina; Araya, Pamela; Flores, Roberto; Duery, Oscar; Vidal, Roberto (Mary Ann Liebert, 2016)
      The aim of this research was to statistically analyze the association between antimicrobial susceptibility/resistance to erythromycine, gentamicin, ciprofloxacin, and tetracycline and 11 virulence genes associated with ...
    • Céspedes, Sandra; Salgado, Paulina; Valenzuela, Patricio; Vidal, Roberto; Oñate, Angel A. (2011)
      One of the capabilities developed by bacteria is the ability to gain large fragments of DNA from other bacteria or to lose portions of their own genomes. Among these exchangeable fragments are the genomic islands (GIs). ...
    • Cádiz, Leandro; Torres, Alexia; Valdés, Raúl; Vera, Gabriel; Gutiérrez, Daniela; Levine, Myron M.; Montero, David A.; O'Ryan Gallardo, Miguel; Rasko, David A.; Stine, O. Colin; Vidal, Roberto; Del Canto, Felipe (Frontiers Media S.A., 2018)
      Copyright © 2018 Cádiz, Torres, Valdés, Vera, Gutiérrez, Levine, Montero, O'Ryan, Rasko, Stine, Vidal and Del Canto. The coli surface antigen 26 (CS26) of enterotoxigenic Escherichia coli (ETEC) had been described as a ...
    • Vidal, Roberto; Ginard, Daniel; Khorrami, Sam; Mora-Ruiz, Merit; Munoz, Raul; Hermoso, Marcela; Díaz, Sara; Cifuentes, Ana; Orfila, Alejandro; Rosselló-Móra, Ramon (Elsevier GmbH, 2015)
      © 2015 Elsevier GmbH. Next generation sequencing approaches allow the retrieval of several orders of magnitude larger numbers of amplified single sequences in 16S rRNA diversity surveys than classical methods. However, the ...
    • Panchalingam, Sandra; Antonio, Martin; Hossain, Anowar; Mandomando, Inacio; Ochieng, Ben; Oundo, Joseph; Ramamurthy, T.; Tamboura, Boubou; Zaidi, Anita K.M.; Petri, William; Houpt, Eric; Murray, Patrick; Prado Jiménez, Valeria; Vidal, Roberto; Steele, Duncan; Strockbine, Nancy; (2012)
      To understand the etiology of moderate-to-severe diarrhea among children in high mortality areas of sub-Saharan Africa and South Asia, we performed a comprehensive case/control study of children aged <5 years at 7 sites. ...
    • Del Canto, Felipe; Valenzuela, Patricio; Cantero, Lidia; Bronstein, Jonathan; Blanco, Jesús E.; Blanco, Jorge; Prado Jiménez, Valeria; Levine, Myron; Nataro, James; Sommerfelt, Halvor; Vidal, Roberto (2011)
      Enterotoxigenic Escherichia coli (ETEC) is an important cause of diarrhea. Three adhesins (Tia, TibA, EtpA), an iron acquisition system (Irp1, Irp2, and FyuA), a GTPase (LeoA), and an autotransporter (EatA) are ETEC ...
    • O'Ryan Gallardo, Miguel; Lucero, Yalda; Vidal, Roberto (2012)
      Rotavirus and norovirus are the leading causes of acute gastroenteritis worldwide. Both viruses share features such as low infectious dose, high stool concentration and prolonged survival in the environment, including ...
    • Colello, Rocío; Vélez, María Victoria; González, Juliana; Montero, David A.; Bustamante, Ana V.; Del Canto, Felipe; Etcheverría, Analía I.; Vidal, Roberto; Padola, Nora Lía (Academic Press, 2018)
      © 2018 Elsevier Ltd Shiga toxin-producing Escherichia coli (STEC) are important foodborne pathogens that can cause severe disease. The ability to adhere to epithelial cells is an important virulence trait and pathogenicity ...
    • Olivares Morales, Mauricio; De la Fuente, Marjorie; Dubois Camacho, Karen; Palominos Parada, Daniela Paz; Díaz Jiménez, David; Torres Riquelme, Alejandro; Xu, Xiaojiang; Chamorro Veloso, Nayaret; Naves, Rodrigo; González Burgos, María Julieta; Quera Pino, Rodrigo; Figueroa, Carolina; Cidlowski, John Anthony; Vidal, Roberto; Hermoso Ramello, Marcela (Frontiers Media, 2018-05-16)
      Crohn's disease (CD) is a chronic inflammatory bowel disorder characterized by deregulated inflammation triggered by environmental factors Notably, adherent-invasive Escherichia coli (AIEC), a bacterium with the ability ...
    • Del Canto, Felipe; Botkin, Douglas J.; Valenzuela, Patricio; Popov, Vsevolod; Ruiz-Perez, Fernando; Nataro, James P.; Levine, Myron M.; Stine, O. Colin; Pop, Mihai; Torres, Alfredo G.; Vidal, Roberto (2012)
      Enterotoxigenic Escherichia coli (ETEC) is an important cause of diarrhea, mainly in developing countries. Although there are 25 different ETEC adhesins described in strains affecting humans, between 15% and 50% of the ...
    • Montero, David; Orellana, Paz; Gutiérrez, Daniela; Araya, Daniela; Salazar, Juan Carlos; Prado Jiménez, Valeria; Oñate, Ángel; del Canto, Felipe; Vidal, Roberto (American Society for Microbiology, 2014)
      © 2014, American Society for Microbiology. Shiga-toxin producing Escherichia coli (STEC) is the etiologic agent of acute diarrhea, dysentery, and hemolytic-uremic syndrome (HUS). There is no approved vaccine for STEC ...
    • Montero, David A.; Velasco, Juliana; Del Canto, Felipe; Puente, Jose L.; Padola, Nora L.; Rasko, David A.; Farfán, Mauricio J.; Salazar, Juan C.; Vidal, Roberto (Nature Publishing Group, 2017)
      © 2017 The Author(s).Shiga Toxin-producing Escherichia coli (STEC) are a group of foodborne pathogens associated with diarrhea, dysentery, hemorrhagic colitis (HC) and hemolytic uremic syndrome (HUS). Shiga toxins are the ...
    • Vergara, Alejandra; Vidal, Roberto; Torres, Alfredo G.; Farfan, Mauricio J. (Frontiers Media S.A., 2014)
      © 2014 Vergara, Vidal, Torres and Farfan. Enterohemorrhagic Escherichia coli (EHEC) strains are causative agents of diarrhea and hemorrhagic colitis, both diseases associated with intestinal inflammation and cell damage. ...
    • Vidal, Roberto; Vidal, Maricel; Lagos, Rossana; Levine, Myron; Prado Jiménez, Valeria (2004)
      A multiplex PCR for detection of three categories of diarrheagenic Escherichia coli was developed. With this method, enterohemorrhagic E. coli, enteropathogenic E. coli, and enterotoxigenic E. coli were identified in fecal ...
    • Lucero, Yalda; Vidal, Roberto; O'Ryan Gallardo, Miguel (Elsevier Ltd, 2018)
      © 2017 Elsevier Ltd Noroviruses (NoVs) are one of the leading causes of acute gastroenteritis, including both outbreaks and endemic infections. The development of preventive strategies, including vaccines, for the most ...
    • Céspedes, Sandra; Salgado, Paulina; Retamal-Díaz, Angello; Vidal, Roberto; Oñate, Angel (2012)
      The genomic island 3 (GI-3) shared by Brucella melitensis and Brucella abortus contains 29 genes encoding mostly unknown proteins. Within this island, the open reading frames (ORFs) BAB1_0278 and BAB1_0263 are present, ...
    • Magne, Fabien; O'Ryan Gallardo, Miguel; Vidal, Roberto; Farfán Urzúa, Mauricio Javier (2016)
      Purpose of reviewThe gut microbiome is critical for human health, and its alteration is associated with intestinal, autoimmune and metabolic diseases. Numerous studies have focused on prevention or treatment of dysbiotic ...
    • Farfan, Mauricio; Cantero, Lidia; Vergara, Alejandra; Vidal, Roberto; Torres, Alfredo (2013)
      Infection with Shiga toxin-producing Escherichia coli (STEC) O157:H7 is characterized by acute inflammation of the colonic mucosa. STEC O157:H7 contains two non-identical loci encoding long polar fimbriae (Lpf), which ...
    • O'Ryan Gallardo, Miguel; Vidal, Roberto; Del Canto, Felipe; Salazar, Juan Carlos; Montero, David (Taylor and Francis Inc., 2015)
      © 2015 Taylor & Francis Group, LLC.Efforts to develop vaccines for prevention of acute diarrhea have been going on for more than 40 y with partial success. The myriad of pathogens, more than 20, that have been identified ...
    • O'Ryan Gallardo, Miguel; Vidal, Roberto; Del Canto, Felipe; Salazar, Juan Carlos; Montero, David (Taylor and Francis Inc., 2015)
      © 2015 Taylor & Francis Group, LLC.In Part II we discuss the following bacterial pathogens: Shigella, Salmonella (non-typhoidal), diarrheogenic E. coli (enterotoxigenic and enterohemorragic) and Campylobacter jejuni. In ...