Now showing items 1-20 of 34

    • 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 ...
    • 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 ...
    • 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 ...
    • 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)
    • Vidal Álvarez, Roberto; Roessler, Patricia; Solari, Verónica; Vollaire, Jimena; Jiang, Xi; Matson, David O.; Mamani, Nora; Prado Jiménez, Valeria; O'Ryan Gallardo, Miguel (AMER SOC MICROBIOLOGY, 2006-06)
      Capsid and polymerase (RdRp) genes of 13 norovirus outbreak strains from Chile were compared. The genes sequences were discordant for five strains, and recombination was confirmed for two of them by amplification of a ...
    • Farfán Urzúa, Mauricio; Torres Torretti, Juan Pablo; O'Ryan Gallardo, Miguel; Olivares Morales, Mauricio; Gallardo Schall, Pablo; Lastra Torres, Jorge; Salas Palma, Carolina (Sociedad Chilena de Infectología, 2020)
      The global shortage of reagents and kits for nucleic acid extraction and molecular detection of SARS-CoV-2 requires new cost-effective strategies for the diagnosis of suspected COVID-19 cases, especially in countries that ...
    • O'Ryan Gallardo, Miguel; Torres Torreti, Juan Pablo (Sociedad Chilena de Infectología, 2020)
    • George Carreño, Sergio; Torres Torreti, Juan Pablo; O'Ryan Gallardo, Miguel (Sociedad Médica Santiago, 2020)