Now showing items 1-20 of 86

    • A novel host-adapted strain of SalmonellaTyphimurium causes renal disease in olive ridley turtles (Lepidochelys olivacea) in the Pacifc 

      Work, Thierry; Dagenais, Julie; Stacy, Brian; Ladner, Jason T; Lorch, Jeffrey M; Balazs, George H; Barquero Calvo, Elías; Berlowski-Zier, Brenda; Breeden, Renee; Corrales Gómez, Natalia; González Barrientos, Rocío; Harris, Heather S.; Hernández Mora, Gabriela; Herrera-Ulloa, Angel; Hesami, Shoreh; Todd Jones, T.; Norton, Terry M.; Rameyer, Robert A.; Taylor, Daniel R.; Waltzek, Thomas B. (Springer Nature, 2019-06)
      Salmonella spp. are frequently shed by wildlife including turtles, but S. enterica subsp. enterica serovar Typhimurium or lesions associated with Salmonella are rare in turtles. Between 1996 and 2016, we necropsied 127 ...
    • Agentes infecciosos en el zorro cangrejero (cerdocyon thous) en las áreas protegidas urbanas del Valle de Aburrá, Colombia 

      Muñoz Mazo, Sara Salomé (Universidad Nacional, Costa Rica, 2021)
      La detección de agentes infecciosos en animales de fauna silvestre en entornos urbanos es fundamental para su conservación y manejo. Dependiendo del tipo de agente infeccioso que los afecte, las implicaciones son relevantes ...
    • Anopheles albimanus (Diptera: Culicidae) Ensemble Distribution Modeling: Applications for Malaria Elimination 

      Rhodes, Charlotte G.; Loaiza, Jose R.; Romero, Luis Mario; Gutiérrez Alvarado, José Manuel; Delgado, Gabriela; Rojas Salas, Obdulio; Ramírez Rojas, Melissa; Aguilar Avendaño, Carlos; Maynes, Ezequías; Valerín Cordero, José A.; Soto Mora, Alonso; Rigg, Chystrie A.; Zardkoohi, Aryana; Prado, Monica; Friberg, Mariel D.; Bergmann, Luke R.; Marín Rodríguez, Rodrigo; Hamer, Gabriel L.; Fernando Chaves, Luis (MDPI, 2022)
      In the absence of entomological information, tools for predicting Anopheles spp. presence can help evaluate the entomological risk of malaria transmission. Here, we illustrate how species distribution models (SDM) could ...
    • Antioxidant and antimicrobial activity of two Costa Rican cultivars of ber (Ziziphus mauritiana): An underexploited crop in the American tropic 

      Cubero Román, Eric; Carvajal-Miranda, Yendry; Rodríguez, Gerardo; Álvarez Valverde, Víctor; Jiménez-Bonilla, Pablo (Wiley Periodicals LLC, 2023-03-17)
      Ber is an antioxidant-rich fruit from Asia and has recently been cultured in Central America. The antioxidant capacity and antimicrobial activity of Z. mauritiana cultured of bers from Guanacaste, Costa Rica, were evaluated. ...
    • Apparent lack of evidence on selected infectious agents in wild Yellow-naped Amazon parrots: implications for releasing attempts 

      Dolz, Gaby; Blanco-Peña, Kinndle; Niehaus, Carmen; Salinas, Alejandro; Jiménez-Soto, Mauricio (Universidad Nacional, Costa Rica, 2015-05-09)
      Blood and feather samples, as well as oropharyngeal and cloacal swabs, were collected from nine free-ranging Amazona auropalliata between January and May 2009 in two highly modified landscapes in northern Costa Rica. ...
    • Applying One Health to understand brucellosis biology 

      Guzman-Verri, Caterina (Microbiology Society UKCongreso de la Sociedad de Microbiología del Reino Unido, 2019-04-08)
      Members of the Brucella genus, are facultative extracellular intracellular zoonotic bacteria that cause reproductive disease in animals. The different species show strong host preference in spite of sharing 96-98% similarity ...
    • Appraisal of the epidemiology of Neospora caninum infection in Costa Rican dairy cattle 

      ROMERO-ZUÑIGA, JUAN JOSÉ (Wageningen Institute of Animal Science, 2005)
      Appraisal of the epidemiology of Neospora caninum infection in Costa Rican dairy cattle. In Costa Rica, milk production has increased gradually during the twentieth century, in which the activity developed from a non-technical ...
    • Brucella abortus strain 2308 Wisconsin genome: Importance of the definition of reference strains 

      Castillo-Zeledón, Amanda; Suárez-Esquivel, Marcela; Ruiz-Villalobos, Nazareth; Jiménez-Rojas, César; Roop, R. Martin; Comerci, Diego J.; BARQUERO-CALVO, ELIAS; Chacón-Díaz, Carlos; Caswell, Clayton C.; Baker, Kate; Chaves-Olarte, Esteban; Thomson, Nicholas; Moreno, Edgardo; LETESSON, Jean-Jacques; De Bolle, Xavier; Guzman-Verri, Caterina (Frontiers in Microbiology, 2016-09-29)
      La brucelosis es una enfermedad infecciosa bacteriana que afecta a una amplia gama de mamíferos y una zoonosis desatendida causada por especies del género genéticamente homogéneo Brucella. Como en la mayoría de los estudios ...
    • Brucella abortus uses a stealthy strategy to avoid activation of the innate immune system during the onset of infection 

      BARQUERO-CALVO, ELIAS; Chaves-Olarte, Esteban; Weiss, David; Guzman-Verri, Caterina; Chacón-Díaz, Carlos; Rucavado, Alexandra; Moriyon, Ignacio; Moreno, Edgardo (PLOS ONE, 2007-07-18)
      Background. To unravel the strategy by which Brucella abortus establishes chronic infections, we explored its early interaction with innate immunity. Methodology/Principal Findings. Brucella did not induce proinflammatory ...
    • Brucella canis is an intracellular pathogen that induces a lower proinflammatory response than smooth zoonotic counterparts 

      Guzman-Verri, Caterina; Chacón-Díaz, Carlos; Altamirano-Silva, Pamela; González-Espinoza, Gabriela; Medina, María-Concepción; Alfaro-Alarcón, Alejandro; Bouza-Mora, Laura; Jiménez-Rojas, César; Wong, Melissa; BARQUERO-CALVO, ELIAS; Rojas, Norman; Moreno, Edgardo; Chaves-Olarte, Esteban (Infection and Immunity, 2015-09-29)
      Canine brucellosis caused by Brucella canis is a disease of dogs and a zoonotic risk. B. canis harbors most of the virulence determinants defined for the genus, but its pathogenic strategy remains unclear since it has not ...
    • Brucella intracellular life: from invasion to intracellular replication 

      Gorvela, Jean Pierre; Moreno, Edgardo (Elsevier, 2002)
      Brucella organisms are pathogens that ultimate goal is to propagate in their preferred niche, the cell. Upon cell contact the bacteria is internalized via receptor molecules by activating small GTPases of the Rho subfamily ...
    • Brucella neotomae infection in humans, Costa Rica 

      BARQUERO-CALVO, ELIAS; Baker, Kate S.; Amuy, Ernesto; Chaves-Olarte, Esteban; Thomson, Nicholas R.; Moreno, Edgardo; Guzman-Verri, Caterina; Suárez-Esquivel, Marcela; Ruiz-Villalobos, Nazareth; Jiménez-Rojas, César; Chacón-Díaz, Carlos; Víquez-Ruiz, Eunice; Rojas-Campos, Norman; Oviedo-Sánchez, Gerardo (Emerging Infectious Diseases, 2017-06)
      Several species of Brucella are known to be zoonotic, but B. neotomae infection has been thought to be limited to wood rats. In 2008 and 2011, however, B. neotomae was isolated from cerebrospinal fluid of 2 men with ...
    • Brucellosis in Central America 

      Moreno, Edgardo (Elsevier Science B.V, 2002)
      Brucellosis is a disease of domestic animals and humans in Central America (CA). Bovine and swine brucellosis caused by Brucella abortus and Brucella suis, respectively, have been identified in all CA countries, while ovine ...
    • Cambio climático y enfermedades tropicales bajo estudio en Cuajiniquil 

      Chaves-Jaén, Cristian (Oficina de Comunicación, Universidad Nacional, 2024-04-16)
    • Cangrejos de agua dulce transmiten peligroso parásito al humano : puede afectar cerebro, médula espinal, pericardio, ojos, útero, escroto y tejidos subcutáneos de las personas. 

      Núñez Z., Johnny (Oficina de Comunicación, Universidad Nacional, 2017-03)
      Consumir cangrejos de río crudos, mal procesados o cocidos de forma parcial podrían desembocar en una letal enfermedad, conocida como paragonimiasis humana, una zoonosis importante en América Tropical. En Costa ...
    • Canine distemper virus in wild felids of Costa Rica 

      Barruela, Flor; Avendaño, Roberto; Soto-Fournier, Sofía; Chavarría, Max; Monge, Otto; Gutierrez-Espeleta, Gustavo A.; Chaves, Andrea (Journal of Wildlife Diseases, 2016-04-01)
      Several highly infectious diseases can be transmitted through feces and cause elevated mortality among carnivore species. One such infectious agent, canine distemper virus (CDV; Paramyxoviridae: Morbillivirus), has been ...
    • Characterization of a recent malaria outbreak in the autonomous indigenous region of Guna Yala, Panama 

      Calzada, José E; Marquez, Ricardo; Rigg, Chystrie; De La Cruz, Manuel; Chaves, Luis F; Cáceres, Lorenzo (BioMed Central, 2015-11-17)
      Background: This study aims to describe the epidemiological and entomological factors associated with a recent malaria outbreak that occurred in 2012 in a socially marginalized population from Guna Yala Comarca in Panama. ...
    • Chromobacterium violaceum infection in a free ranging howler monkey in Costa Rica 

      Baldi, Mario; Morales, Juan Alberto; Hernandez, Giovanna; Jiménez-Soto, Mauricio; Alfaro-Alarcón, Alejandro; BARQUERO-CALVO, ELIAS (Wildlife Disease Association, 2010)
      Chromobacterium violaceum is a gram-negative saprobe bacterium that is a rare opportunistic pathogen in mammals. There are numerous reports in humans including fatalities, but no record exists in free-ranging nonhuman ...
    • Climatic fuctuations and malaria transmission dynamics, prior to elimination, in Guna Yala, República de Panamá 

      Amarilis Hurtado, Lisbeth; Calzada, José E.; Rigg, Chystrie A.; Castillo, Milagros; Chaves, Luis Fernando (BioMed Central, 2018-02-20)
      Background: Malaria has historically been entrenched in indigenous populations of the República de Panamá. This scenario occurs despite the fact that successful methods for malaria elimination were developed during the ...
    • Contingencia y educación a la población 

      Núñez Z, Johnny (Oficina de Comunicación, Universidad Nacional., 2020-04)
      En el marco del enfoque multisectorial Una-Salud, que promueve la Organización Mundial de la Salud (OMS), se establece que la esencia del médico veterinario es la protección de la salud pública, ...