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A participatory surveillance of marsh deer (Blastocerus dichotomus) morbidity and mortality in Argentina: first results
Orozco, María Marcela; Argibay, Hernán Darío; Minatel, Leonardo; Guillemi, Eliana Carolina; Berra, Yanina; Schapira, Andrea; Di Nucci, Dante; Marcos, Andrea; Lois, Fernanda; Falzone, Martín; Farber, Marisa Diana (BMC, 2020-09)Background: In an era of unprecedented socio-ecological changes, managing wildlife health demands high-quality data collection and the engagement of local communities. Blastocerus dichotomus, the largest South American ... -
Anaplasma marginale modulates the microbiota of Rhipicephalus microplus organs involved in pathogen transmission
Pérez, Agustina Ericlee; Guillemi, Eliana Carolina; Abuin-Denis, Lianet; Piloto-Sardiñas, Elianne; Obregón, Dasiel; Pin Viso, Natalia Daniela; Sarmiento, Nestor Fabian; Cabezas-Cruz, Alejandro; Farber, Marisa Diana (Elsevier, 2025-09)The cattle tick Rhipicephalus microplus is a vector for Anaplasma marginale in tropical and subtropical regions worldwide. The study of pathogen-microbiome-vector interactions at the tick organ scale is a promising area ... -
Applying disease risk analysis for conservation translocations in Argentina : A case study on marsh deer (Blastocerus dichotomus)
Wiemeyer, Guillermo; Uhart, Marcela M.; Rodríguez Planes, Lucía; Rago, María Virginia; Guillemi, Eliana Carolina; Chang Reissig, Elizabeth; Raño, Mariana; Di Nucci, Dante; Beldomenico, Pablo Martín; Peker, Silvana; Geffner, Laura; Orozco, María Marcela (Public Library of Science, 2025-05)Disease risk management is essential for conservation translocations to prevent inadvertent pathogen introduction affecting human, animal and ecosystem health. Wildlife Disease Risk Analysis (DRA) is a recognized framework ... -
Closing the Gaps to Understand the Tick Transmission of Anaplasma marginale among Giant Anteaters (Myrmecophaga tridactyla) in Argentina
Guillemi, Eliana Carolina; Imbert, Mélody; De La Fourniere, Sofia; Orozco, Maria Marcela; Peña Martínez, Jorge; Rosas, Ana Carolina; Montenegro, Valeria Noely; Farber, Marisa Diana (MDPI, 2020-12)Anaplasma marginale, a well-known cattle pathogen of tropical and subtropical world regions, has been previously molecularly characterized in a giant anteater (Myrmecophaga tridactyla) from Corrientes, Argentina. Ticks or ... -
Detección de bacterias de los géneros Ehrlichia, Anaplasma y Rickettsia en garrapatas Rhipicephalus sanguineus s.l en Pergamino, Argentina = Detection of Bacteria of the Genera Ehrlichia, Anaplasma and Rickettsia in Rhipicephalus sanguineus s.l Ticks in the City of Pergamino, Argentina
Borras, Pablo; Sanchez, Juliana; Guillemi, Eliana Carolina; De La Fourniere, Sofia; Abadia, Mercedes; Farber, Marisa Diana; Santini, María Soledad (Ministerio de Salud de la Nación, Argentina, 2019-12)INTRODUCCIÓN: Las rickettsiosis, ehrlichiosis y anaplasmosis son causadas por bacterias gramnegativas intracelulares obligadas y transmitidas por artrópodos. El objetivo de este trabajo fue determinar especies de garrapatas ... -
Development of a Multilocus Sequence Typing scheme for the study of Anaplasma marginale population structure over space and time
Guillemi, Eliana Carolina; Ruybal, Paula; Lia, Veronica Viviana; Gonzalez, Sergio Alberto; Lew, Sergio Eduardo; Zimmer, Patricia Andrea; Lopez Arias, Ludmila Sol; Rodríguez, José Luis; Rodriguez, Sonia Y.; Frutos, Roger; Wilkowsky, Silvina Elizabeth; Farber, Marisa Diana (Elsevier, 2015-03)Bovine Anaplasmosis caused by Anaplasma marginale is a worldwide disease prevalent in tropical and subtropical regions where Rhipicephalus microplus is considered the most significant biological vector. Molecular markers ... -
Development of a PCR assay for identification of Neobalantidium coli (Pomajbíková et al., 2013) in Argentina
Lopez Arias, Ludmila Sol; Guillemi, Eliana Carolina; Bordoni, Noemí; Farber, Marisa Diana; Garbossa, Graciela (2017-12)Neobalantidium coli (Pomajbíková et al., 2013) is a cosmopolitan ciliate which colonizes the intestine of humans and animals. Pigs are the most important host and reservoir for this parasite, although others mammals have ... -
Development of highly sensitive one step-PCR tests for improved detection of B. bigemina and B. bovis
De La Fourniere, Sofía Ana María; Paoletta, Martina; Guillemi, Eliana Carolina; Sarmiento, Nestor Fabian; Donati, Pablo Alejandro; Wilkowsky, Silvina Elizabeth; Farber, Marisa Diana (Elsevier, 2021-08)Bovine babesiosis caused by Babesia bigemina and B. bovis is an economically relevant tick-borne disease distributed over tropical and subtropical world regions. Animals that recover from the clinical disease can remain ... -
Diagnóstico de Entamoeba polecki y su potencial impacto en las condiciones sanitarias de la producción porcina
Lopez Arias, Ludmila Sol; Guillemi, Eliana Carolina; Bordoni, Noemí; Farber, Marisa Diana; Garbossa, Graciela (Ediciones INTA, 2019-12)En Argentina, la producción porcina constituye una actividad en constante aumento, en particular, para la pequeña agricultura familiar. No obstante, este tipo de producción posee ciertas limitaciones (estructurales y ... -
Epidemiology of Babesia, Anaplasma and Trypanosoma species using a new expanded reverse line blot hybridization assay
Paoletta, Martina; Lopez Arias, Ludmila Sol; De La Fourniere, Sofia; Guillemi, Eliana Carolina; Luciani, Carlos; Sarmiento, Nestor Fabian; Mosqueda Gualito, Juan Joel; Farber, Marisa Diana; Wilkowsky, Silvina Elizabeth (2018-02)Vector-borne hemoparasitic infections are a major problem that affects livestock industries worldwide, particularly in tropical and subtropical regions. In this work, a reverse line blot (RLB) hybridization assay was ... -
Evidence of Ehrlichia chaffeensis in Argentina through molecular detection in marsh deer (Blastocerus dichotomus)
Guillemi, Eliana Carolina; Orozco, Maria Marcela; Argibay, Hernán Darío; Farber, Marisa Diana (Elsevier, 2019-04)Vector-borne pathogens are responsible for serious emerging diseases and have been widely described in wildlife. Ehrlichia chaffeensis causes the zoonotic “monocytic ehrlichiosis” in humans, is transmitted by the tick ... -
Fiebre manchada en Argentina. Descripción de dos casos clínicos = Spotted fever in Argentina. Description of two clinical cases
Armitano, Rita Inés; Guillemi, Eliana Carolina; Escalada, Valeria; Govedic, Francisco; Lopez, Jose Luis; Farber, Marisa Diana; Borras, Pablo; Prieto, Monica (Elsevier España, 2019-12)Las rickettsiosis son enfermedades zoonóticas transmitidas por artrópodos vectores, que en Argentina presentan 2 escenarios epidemiológicos diferenciados. Uno, en las yungas de Salta y Jujuy, involucra vectores pertenecientes ... -
Immunisation of cattle against Babesia bovis combining a multi-epitope modified vaccinia Ankara virus and a recombinant protein induce strong Th1 cell responses but fails to trigger neutralising antibodies required for protection
Jaramillo Ortiz, Jose Manuel; Paoletta, Martina; Gravisaco, María José; Lopez Arias, Ludmila Sol; Montenegro, Valeria Noely; De La Fourniere, Sofia; Valenzano, Magali Nicole; Guillemi, Eliana Carolina; Valentini, Beatriz Susana; Echaide, Ignacio Eduardo; Farber, Marisa Diana; Wilkowsky, Silvina Elizabeth (Elsevier, 2019-10)Protection against the intraerythrocytic protozoan parasite Babesia bovis depends on both strong innate and adaptive immune response, this latter involving the presentation of parasite antigens to CD4+ T-lymphocytes by ... -
Manual para el abordaje diagnóstico de la babesiosis y anaplasmosis bovina en Argentina
Mazzucco Panizza, Matilde Nahimé; Morel, Nicolas; Wilkowsky, Silvina Elizabeth; Primo, María Evangelina; Olmos, Leandro Hipolito; Pertile, Carla Natalia; Sarmiento, Nestor Fabian; Rossner, Maria Victoria; Abdala, Alejandro Ariel; Canton, German Jose; Ganzinelli, Sabrina Belen; Thompson, Carolina Soledad; Guillemi, Eliana Carolina; Nava, Santiago (Ediciones INTA, 2024-02)La babesiosis y la anaplasmosis bovina son dos enfermedades infecciosas causantes de importantes pérdidas económicas para la producción ganadera en el centro y norte de la Argentina, principalmente en concepto de mortandad ... -
Molecular identification of Anaplasma marginale in two autochthonous South American wild species revealed an identical new genotype and its phylogenetic relationship with those of bovines
Guillemi, Eliana Carolina; De La Fourniere, Sofia Ana María; Orozco, Marcela; Peña Martínez, Jorge; Correa, Elena; Fernández, Javier; Lopez Arias, Ludmila Sol; Paoletta, Martina; Corona, Belkis; Pinarello, Valérie; Wilkowsky, Silvina Elizabeth; Farber, Marisa Diana (2016)Background: Anaplasma marginale is a well-known cattle pathogen of tropical and subtropical world regions. Even though, this obligate intracellular bacterium has been reported in other host species different than bovine, ... -
Participatory surveillance reveals marsh deer mortality event during an extraordinary flood in Ibera Wetlands, Argentina
Orozco, María Marcela; Guillemi, Eliana Carolina; Minatel, Leonardo; Schapira, Andrea; Caimi, Karina Cynthia; Berra, Yanina; Blanco, Paula; Di Nucci, Dante; Farber, Marisa Diana; Fernandez, M. Pilar; Argibay, Hernán Darío (Wiley, 2025-02)Mortality events of marsh deer (Blastocerus dichotomus) have been historically described in the southern margins of its geographical range. Few documented cases show how environmental changes and pathogens interact to ... -
Rhipicephalus microplus and Its Impact on Anaplasma marginale Multistrain Infections in Contrasting Epidemiological Contexts
Pérez, Agustina Ericlee; Guillemi, Eliana Carolina; Sarmiento, Nestor Fabian; Canton, German Jose; Farber, Marisa Diana (MDPI, 2025-02-07)Bovine anaplasmosis is a disease caused by Anaplasma marginale, a tick-borne bacterial pathogen with global distribution, primarily determined by the range of its vector. In Argentina, Rhipicephalus microplus is the main ... -
Transovarial transmission of anaplasma marginale in Rhipicephalus (Boophilus) microplus ticks results in a bottleneck for strain diversity
De La Fourniere, Sofia; Guillemi, Eliana Carolina; Paoletta, Martina; Pérez, Agustina Ericlee; Obregón, Dasiel; Cabezas-Cruz, Alejandro; Sarmiento, Nestor Fabian; Farber, Marisa Diana (MDPI, 2023-08)Anaplasma marginale is an obligate intraerythrocytic bacterium of bovines, responsible for large economic losses worldwide. It is mainly transmitted by Rhipicephalus (Boophilus) microplus ticks and, despite mounting evidence ... -
Use of molecular tools for the diagnosis of rangeliosis by Rangelia vitalii in Argentina: A case report
Borras, Pablo; Salvador, F.; Rinaldi, V.; Armitano, Rita Inés; Farber, Marisa Diana; Sanchez, R.; Mori, L.; Guillemi, Eliana Carolina (Elsevier, 2020-07)Vector-borne pathogens are responsible for serious emerging diseases and Rangelia vitalii, the etiologic agent of canine rangeliosis, is one of the most pathogenic tick-borne pathogens for dogs in South America. This ...