Now showing items 303-322 of 554

    • Identification and antimicrobial susceptibility of obligate anaerobic bacteria from clinical samples of animal origin 

      BARQUERO-CALVO, ELIAS; Mayorga, Melissa; Rodríguez-Cavallini, Evelyn; López-Ureña, Diana; Quesada-Gómez, Carlos (Anaerobe, 2015-09-14)
      The etiology of veterinary infectious diseases has been the focus of considerable research, yet relatively little is known about the causative agents of anaerobic infections. Susceptibility studies have documented the ...
    • If You're Not Confused, You're Not Paying Attention: Ochrobactrum Is Not Brucella 

      Moreno, Edgardo; Middlebrook, Earl A.; Altamirano-Silva, Pamela; Al Dahouk, Sascha; Araj, George F.; Arce-Gorvel, Vilma; Arenas-Gamboa, Ángela; Ariza, Javier; BARQUERO-CALVO, ELIAS; Battelli, Giorgio; Bertu, Wilson J.; Blasco, José María; Bosilkovsk, Mile; Cadmus, Simeon; Caswell, Clayton C.; Celli, Jean; Chacón-Díaz, Carlos; Chaves-Olarte, Esteban; Comerci, Diego J.; Conde-Álvarez, Raquel; Cook, Elizabeth; Cravero, Silvio; Dadar, Maryam; De Boelle, Xavier; De Massis, Fabrizio; Díaz, Ramón; Escobar, Gabriela I.; Fernández-Lago, Luis; Ficht, Thomas A.; Foster, Jeffrey T.; Garin-Bastuji, Bruno; Godfroid, Jacques; Gorvel, Jean-Pierre; Güler, Leyla; Erdenlig-Gürbilek, Sevil; Gusi, Amayel M.; Guzman-Verri, Caterina; Hai, Jiang; Hernández-Mora, Gabriela; Iriarte, Maite; Jacob, Nestor R.; Keriel, Anne; Khames, Maamar; Köhler, Stephan; Letesson, Jean-Jacques; Loperena-Barber, Maite; López-Goñi, Ignacio; McGiven, John; Melzer, Falk; Mora-Cartin, Ricardo; Moran-Gilad, Jacob; Muñoz, Pilar M.; Neubauer, Heinrich; O'Callaghan, David; Ocholi, Reuben; Oñate, Ángel; Pandey, Piyush; Pappas, Georgios; Pembroke, J. Tony; Roop, Martin; Ruiz-Villalobos, Nazareth; Ryan, Michael P.; Salvador-Bescós, Miriam; Sangari, Félix J.; de Lima Santos, Renato; Seimenis, Aristarchos; Splitter, Gary; Suárez-Esquivel, Marcela; Tabbaa, Darem; Trangoni, Marcos David; Tsolis, Renee M.; Vizcaíno, Nieves; Wareth, Gamal; . Welburn, Susan C; Whatmore, Adrian; Zúñiga-Ripa, Amaia; Moriyónq, Ignacio (American Society for Microbiology, 2023-07-03)
      Bacteria of the genus Brucella are facultative intracellular parasites that cause brucellosis, a severe animal and human disease. Recently, a group of taxonomists merged the brucellae with the primarily free-living, ...
    • Ileitis y colitis piogranulomatosa en un mono ardilla (Saimiri oerstedii) asociada con Prosthenorchis elegans 

      Fallas, S.; Alfaro-Alarcon, Alejandro; Morales, Juan Alberto (Universidad Nacional, Costa Rica, 2012-09-16)
      Un mono ardilla (Saimiri oerstedii), adulto, macho con paresis posterior fue remitido al Laboratorio de Pa- tología de la Escuela de Medicina Veterinaria de la Universidad Nacional. El mono presentaba peritonitis, adherencias ...
    • Impacto de la Pandemia por SARS-CoV2 sobre la Educación 

      Jiménez Sánchez, Carlos (Universidad Nacional, Costa Rica, 2020-12-01)
      Se describe el impacto de la pandemia por SARS-CoV2 sobre la educación y se propone algunos escenarios donde la Universidad Nacional puede contribuir a mitigar el daño y a participar en la construcción del escenario ...
    • In search of a bacterial spedes definition 

      Moreno, Edgardo (Universidad de Costa Rica., 1997)
      The bacterial species concept was examined within the framework of plant and animal associated a-2 proteobacteria, taking into consideration the phylogenetic, taxonomic and biological approaches as well as the microbiologists' ...
    • In vitro activity of thienyl-2-nitropropene compounds against Trypanosoma cruzi 

      Herrera, Cristina; Vallejos, Gabriel; Loaiza, Randall; Zeledón, Rodrigo; Urbina, Andrea; Sepúlveda-Boza, Silvia (Memórias do Instituto Oswaldo Cruz, 2009-11)
      The in vitro activity of four 2-nitropropene derivatives, 1-(3-benzothienyl)-2-nitropropene (N1), 1-(3-thienyl)-2- nitropropene (N2), 1-(5-bromo-2-thienyl)-2-nitropropene (N3) and 1-(4-bromo-2-thienyl)-2-nitropropene (N4), ...
    • In vivo animal models confrm an increased virulence potential and pathogenicity of the NAP1/RT027/ST01 genotype within the Clostridium difcile MLST Clade 2 

      Orozco-Aguilar, Josue; Acuña-Amador, Luis; Rodríguez, César; Quesada-Gómez, Carlos; Alfaro-Alarcon, Alejandro; Chaves Olarte, Esteban (BioMed Central, 2020-09-22)
      Background: Based on MLST analyses the global population of C. difcile is distributed in eight clades, of which Clade 2 includes the “hypervirulent” NAP1/RT027/ST01 strain along with various unexplored sequence types ...
    • In vivo proteolytic degradation of the Escherichia coli acyltransferase HlyC 

      Guzman-Verri, Caterina; Chaves-Olarte, Esteban; García, Fernando; Arvidson, Staffan; Moreno, Edgardo (The American Society for Biochemistry and Molecular Biology, 2001-05-18)
      Escherichia coli hemolysin (HlyA) is the prototype toxin of a major family of exoproteins produced by Gram-negative bacteria known as “repeats in toxins.” Only fatty acid-acylated HlyA molecules at residues Lys564 and ...
    • In-vitropredatory activity of nematophagous fungi from Costa Rica with potential use for controlling sheep and goat parasitic nematodes 

      de Oliveira, Jaqueline; Vega-Obando, Rommel; Montero Caballero, Danilo; Vargas, Bernardo; Hernández-Gamboa, Jorge; Orozco-Solano, Claudio; Soto-Barrientos, Natalia (Universidad de Costa Rica., 2011-03)
      In tropical and subtropical regions of the world, parasitic diseases are a main cause of losses in live-stock productivity. The increased acquired resistence to anthelmintics by gastrointestinal nematodes, requires biological ...
    • Increased adult Aedes aegypti and Culex quinquefasciatus (Diptera: Culicidae) abundance in a dengue transmission hotspot, compared to a coldspot, within Kaohsiung City, Taiwan 

      Ng, Ka Chon; Chaves, Luis Fernando; TSAI, KUN-HSIEN; Chuang, Ting-Wu (MDPI, 2018-08-13)
      The assumption that vector abundance differences might drive spatial and temporal heterogeneities in vector-borne disease transmission is common, though data supporting it is scarce. Here, we present data from two common ...
    • Indian Ocean Dipole and Rainfall Drive a Moran Effect in East Africa Malaria Transmission 

      Chaves, Luis Fernando; Satake, Akiko; Hashizume, Masahiro; Minakawa, Noboru (Oxford University Press, 2012-06-15)
      Background. Patterns of concerted fluctuation in populations—synchrony—can reveal impacts of climatic variability on disease dynamics. We examined whether malaria transmission has been synchronous in an area with a common ...
    • Indian Ocean Dipole drives malaria resurgence in East African highlands 

      Hashizume, Masahiro; Chaves, Luis Fernando; Minakawa, Noboru (SCIENTIFIC REPORTS, 2012-02-16)
      Malaria resurgence in African highlands in the 1990s has raised questions about the underlying drivers of the increase in disease incidence including the role of El-Nin ̃o-Southern Oscillation (ENSO). However, climatic ...
    • Indices de similitud entre taxocenosis de t1ebótomos (Diptera: Psychodidae) en un área endémica de leishmaniasis cutánea en Costa Rica 

      Herrero, Marco; Roja, Julio; Dobles, Alvaro; Jiménez Rocha, Ana Eugenia (Universidad de Costa Rica, 1993-12-01)
      A comparison of diversity between eight Costa Rican taxocenosis of phlebotorninae sandflies was made with the Sorensen sirnilarity coefficient. Sites Agua Blanca-Chirraca (C = 0.68), Ceiba Este-Chirraca (C = 0.66), La ...
    • Intervalo parto-concepción en ganado lechero especializado de Costa Rica 

      La Roche Loaiza, Amed; Vargas Leitón, Bernardo; Camacho Sandoval, Jorge; Castillo Badilla, Gloriana; ROMERO-ZUÑIGA, JUAN JOSÉ (Universidad Nacional, Costa Rica, 2019-03-25)
      Resumen: Un hato lechero eficiente debe producir una cría viva y sana por vaca, por año, y esto se debe de conseguir con un Intervalo Parto Concepción (IPC) no superior a 100 días. Objetivo: describir aspectos epidemiológicos ...
    • Intoxicación por Senna cobanensis en terneros cebuinos: Primer reporte de caso 

      Vargas Muñoz, Carolina ; Vargas-Muñoz, Mariana; Sánchez-Chaves, Luis; Alfaro-Alarcon, Alejandro; Alpízar-Solís, Carlos; Luna-Tortós, Carlos (Universidad Nacional, Costa Rica, 2023)
      Las plantas del género Senna pertenecen a la familia Fabaceae, distribuidas, mundialmente, en zonas tropicales y subtropicales. Algunas especies del género contienen productos del metabolismo secundario, los cuales se ...
    • Intracellular adaptation of Brucella abortus 

      Lamontagne, Julie; Forest, Anik; Marazzo, Elena; François, Denis; Butler, Heather; Michaud, Jean-François; Boucher, Lyne; Pedro, Ida; Villeneuve, Annie; Sitnikov, Dmitri; Trudel, Sylvie; Nassif, Najib; Boudjelt, Djamila; Tomaki, Fadi; Chaves-Olarte, Esteban; Guzman-Verri, Caterina; Brunet, Sylvain; Côté-Martin, Alexandra; Hunter, Joanna; Moreno, Edgardo; Paramithiotis, Eustache (Universidad Nacional, Costa Rica, 2009-03)
      Macrophages were infected with virulent B. abortus strain 2308 or attenuated strain 19. Intracellular bacteria were recovered at different times after infection and their proteomes compared. The virulent strain initially ...
    • Is the production of embryos in small-cale farming an economically feasible enterprise? 

      Romero-Zúñiga, Juan José; Sánchez, Zazil; Lammoglia, Miguel Ángel; Alarcón, Marco (Reproduction in Domestic Animals, 2015-04)
      The present assay attempts to evaluate the feasibility of using embryo transfer in small community farmers by in vivo study and by modelling the results obtained. From the total of 59 donor cows, 62.7% responded to treatment, ...
    • Isolation and genetic characterization of Toxoplasma gondii from striped dolphin (Stenella coeruleoalba) from Costa Rica 

      Dubey, J. P.; Sundar, N.; Velmurugan, G. V.; Gonzalez-Barrientos, C. R.; Hernandez-Morat, G.; Sui, C.; Morales, Juan Alberto (American Society of Parasitologists, 2007)
      Toxoplasma gondii infection in marine mammals is of interest because of mortality and mode of transmission. It has been suggested that marine mammals become infected with T. gondii oocysts washed from land to the sea. We ...
    • Isolation and identification of Arcobacter species from Costa Rican poultry production and retail sources 

      Zumbado, Leana; Barboza, Karol; Angulo, Irina; Redondo-Solano, Mauricio; Castro, Eduardo; Arias, María Laura (Journal of food protection, 2017-04-03)
      Arcobacter is a gram-negative rod recognized as a potential food- and waterborne pathogen; nevertheless, little is known about the effects of this pathogen on human and animal health. Although Arcobacter species are commonly ...
    • Isolation of toxoplasma gondii from the keel-billed toucan (Ramphastos sulfuratus) from Costa Rica 

      Dubey, J. P.; Velmurugan, G. V.; Arguedasf, R.; Sut, C.; Morales, Juan Alberto (American Society of Parasitologists, 2009-04-01)
      Pectoral muscles from a captive keel-billed toucan (Ramphastos sulfuratus) from Costa Rica were fed to a Toxoplasma gondii– free cat, and the cat shed oocysts. Laboratory mice fed these oocysts developed antibodies to T. ...