Now showing items 1-20 of 39

    • Díaz T., Janepsy; Solari G., Verónica; Cáceres C., Omar; Mena A., Javier; Baeza P., Silvia; Muñoz U., Ximena; O'Ryan Gallardo, Miguel; Galeno A., Héctor; Maldonado B., Aurora; Mamani M., Nora (2012)
      Outbreaks of acute gastroenteritis are a public health problem. Norovirus is known as the most common cause (50%). In Chile, immediate notifi cation allows surveillance of these events. We describe an acute gastroenteri ...
    • Montero, David; Vidal, Maricel; Pardo, Mirka; Torres, Alexia; Kruger, Eduardo; Farfán Urzúa, Mauricio; O'Ryan Gallardo, Miguel; Fleckenstein, James; Canto Fuentes, Felipe del; Vidal Álvarez, Roberto; Luo, Qingwei (Elsevier, 2017)
      In March 2010, a massive outbreak of gastroenteritis started in the region of Antofagasta (northern Chile). The outbreak was mainly attributed to Norovirus genogroup II although ETEC strains were also isolated with high ...
    • O'Ryan Gallardo, Miguel; Sánchez, José Miguel (OXFORD UNIV PRESS, 2008-08)
      The ambient permit system proposed in the literature for cost-effective pollution reduction is difficult to implement and may result in lower net benefits than using another instrument. The article develops a model for ...
    • Lucero Álvarez, Yalda; Oyarzún, Amaya; O'Ryan Gallardo, Miguel; Valenzuela, Romina; Farfán Urzúa, Mauricio; Gajardo, Iván; Ossa Alemparte, Juan; Pérez Bravo, Francisco (Frontiers media SA, 2017)
    • Torres Torretti, Juan Pablo; O’Ryan Gallardo, Miguel (Sociedad Chilena de Pediatría, 2020)
    • George, Sergio; Mamani Manzano, Nora; Lucero Álvarez, Yalda; Torres Torretti, Juan Pablo; Farfán Urzúa, Mauricio; Lagomarcino, Anne J.; Orellana, Andrea; O'Ryan Gallardo, Miguel (Wiley-Blackwell, 2016)
      BackgroundWe previously detected Helicobacter pylori infection by stool antigen ELISA assay in 33-41% of asymptomatic Chilean children between 2-3 years of age, of which 11-20% had a transient infection and 21-22% a ...
    • Gallardo Schall, Pablo; Izquierdo, Mariana; Vidal Álvarez, Roberto; Chamorro Veloso, Nayaret; Rossello Mora, Ramón; O'Ryan Gallardo, Miguel; Farfán Urzúa, Mauricio (Frontiers media SA, 2017)
      Background: Diarrheagenic Escherichia coli (DEC) strains are a major cause of diarrhea in children under 5 years of age worldwide. DEC pathogenicity relies on the interaction of bacteria with environmental factors, including ...
    • Santolaya de Pablo, María Elena; Alvarez, Ana M.; Avilés, Carmen L.; Becker, Ana; Cofré, José; Cumsille Garib, Miguel; O'Ryan Gallardo, Miguel; Payá, Ernesto; Salgado, Carmen; Silva, Pamela; Tordecilla, Juan; Varas P., Mónica; Villarroel, Milena; Viviani, Tamara; Zubieta, Marcela (2004-09-15)
      Purpose To compare outcome and cost of ambulatory versus hospitalized management among febrile neutropenic children at low risk for invasive bacterial infection (IBI). Patients and Methods Children presenting with ...
    • Pickering, Larry K.; Morrow, Ardythe L.; Herrera, Ismael; O'Ryan Gallardo, Miguel; Estes, Mary K.; Guilliams, Stephen E.; Jackson, Laurie; Carter-Campbell, Shelly; Matson, David O. (1995)
      This prospective study evaluated human milk and serum antirotavirus antibody concentrations following maternal rotavirus immunization. Postpartum women (33) were randomized into 3 groups and received a single oral dose of ...
    • Rosselot Jaramillo, Eduardo; Bravo Lechat, Mireya; Lang, Miguel; Valenzuela Yuraidini, Carlos; O'Ryan Gallardo, Miguel; Thambo Becker, Sergio; Horwitz Campos, Nina; Acevedo Pérez, Irene; Rueda Castro, Laura; Sotomayor, María Angélica (Sociedad Médica de Santiago, 2008-05)
      Plagiarism is defined as the intellectual fraud in which an individual attempts to unduly appropriate, for his/her own benefit, the knowledge, ideas or discoveries of someone else. It is not uncommon in academic settings ...
    • O'Ryan Gallardo, Miguel (SPRINGER, 2006-08)
      This paper develops a conceptual model to analyze how specific factors affect the compliance costs of three suboptimal policy instruments, when compared to the optimal ambient permit system (APS) benchmark. The model ...
    • Lucero Álvarez, Yalda; Oyarzún, Amaya; O'Ryan Gallardo, Miguel; Valenzuela, Romina; Alcalde Ruíz, Elisa; Arce Fricke, Claudio; Farfán Urzúa, Mauricio; Vergara, Alejandra F.; Sandoval Gajardo, Iván Elías; Méndez, Jocelyn; Carrasco, Jorge; Ossa Alemparte, Juan; Pérez Bravo, Francisco; Castro Lebrero, Magdalena; Araya, Magdalena (Frontiers media SA, 2017)
      Background: Mechanisms underlying the high clinical and histological diversity of celiac disease (CD) remain elusive. Helicobacter pylori (Hp) chronically infects gastric and duodenal mucosa and has been associated with ...
    • Orellana Manzano, Andrea; O'Ryan Gallardo, Miguel; Lagomarcino, Anne; George Carreño, Sergio; Muñoz, Mindy; Mamani Manzano, Nora; Serrano, Carolina; Harris, Paul; Ramilo, Octavio; Mejías, Asunción; Torres Torretti, Juan Pablo; Lucero Álvarez, Yalda; Quest, Andrew F. G. (Frontiers Media, 2016)
      Background: Helicobacter pylori infects half of the world's population and causes gastric cancer in a subset of infected adults. Previous blood microarray findings showed that apparently healthy children, persistently ...
    • O'Ryan Gallardo, Miguel; Giaquinto, Carlo; Benninghoff, Bernd (Taylor & Francis, 2015)
      A decade after licensure of the human rotavirus vaccine (HRV), a wealth of evidence supports a reduction of rotavirus (RV) gastroenteritis-associated mortality and hospitalizations following HRV inclusion in national ...
    • Torres Torretti, Juan Pablo; O'Ryan Gallardo, Miguel; Hervé E., Béatrice; Espinoza, Ricardo; Acuña, Guillermo; Mañalich Raffo, Juan; Chomalí, May (Infectious Diseases Society of America, 2010)
      Background. In Chile, the novel influenza A (H1N1) epidemic began in the middle-high income area of Santiago. Clinical and laboratory surveillance was intensified with the aim to characterize the epidemic and determine ...
    • O'Ryan Gallardo, Miguel; Bandyopadhyay, Ananda S.; Villena Martínez, Rodolfo; Espinoza Barrios, Mónica; Novoa, José; Weldon, William C.; Oberste, Steven; Self, Steve; Borate, Bhavesh R.; Asturias, Edwin J.; Clemens, Ralf; Orenstein, Walter; Jimeno, José; Ruettimann, Ricardo; Costa Clemens, Sue Ann (Elsevier, 2015)
      Background Bivalent oral poliovirus vaccine (bOPV; types 1 and 3) is expected to replace trivalent OPV (tOPV) globally by April, 2016, preceded by the introduction of at least one dose of inactivated poliovirus vaccine ...
    • Valle, Alfredo del; O'Ryan Gallardo, Miguel (Universidad de Chile. Facultad de Economía y Negocios, 1996-08)
      This paper presents the bases for the design of a systemic management system for air quality in Santiago. The system proposed was developed through a novel participative methodology called Innovative Development, that ...
    • O'Ryan Gallardo, Miguel; Stoddard, Jeffrey; Toneatto, Daniela; Wassil, James; Dull, Peter M. (Springer Link, 2014)
      Recently approved in Europe and Australia, the multi-component meningococcal B vaccine, 4CMenB (Bexsero , Novartis Vaccines and Diagnostics), contains three surface-exposed recombinant proteins (fHbp, NadA, and NHBA) ...
    • Lucero Álvarez, Yalda; Lagomarcino, Anne; Espinoza Barrios, Mónica; Kawakami, Nanami; Mamani Manzano, Nora; Huerta, Nicole; Canto Fuentes, Felipe del; Farfán Urzúa, Mauricio; Sawaguchi, Yoshihiro; George, Sergio; O'Ryan Gallardo, Miguel (Elsevier, 2020)
      Objective: To determine the dynamics of norovirus disease, a major cause of acute gastroenteritis (AGE), compared to other relevant etiologies, among families living in a lower middle income area. Study design: Families ...
    • O'Ryan Gallardo, Miguel (Elsevier, 2016)