Norberto Fondevila

Reduction of foot-and-mouth disease virus transmission in cattle vaccinated one or two weeks before challenge using a commercial polyvalent vaccine

Sergio Duffy, Norberto Fondevila, Sabrina Galdo Novo, M. N. Aznar et autres

Immediate vaccination of the most susceptible and epidemiological relevant animals is a crucial part of control measures that facilitate virus elimination in case of entry of foot-and-mouth disease (FMD). The objective of this study was to evaluate the effect of cattle vaccination …

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Prevalence of honey bee ( Apis mellifera ) viruses in temperate and subtropical regions from Argentina

Ana Molineri, Adriana Pacini, Agostina Giacobino, Natalia Bulacio-Cagnolo et autres

In Argentina, bee virus studies are still incipient, and there are no studies regarding the climatic effect. The aim of this study was to assess and compare the presence of honeybee viruses in different climatic regions from Argentina. A total of 385 …

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Risk factors for the presence of Deformed wing virus and Acute bee paralysis virus under temperate and subtropical climate in Argentinian bee colonies

Ana Molineri, Agostina Giacobino, Adriana Pacini, Natalia Bulacio Cagnolo et autres

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Prevalence of honeybee viruses in different regions of China and Argentina

Guoyong Ding, Norberto Fondevila, María Alejandra Palacio, Julieta Merke et autres

Honeybees are threatened by various pathogens and parasites. More than 18 viruses have been described in honeybees and many of them have been detected in China and Argentina. In China, both Apis cerana and Apis mellifera are raised. In Argentina, beekeepers raise …

Varroa destructor and viruses association in honey bee colonies under different climatic conditions

Agostina Giacobino, Ana Molineri, Adriana Pacini, Norberto Fondevila et autres

Honey bee colonies are threatened by multiple factors including complex interactions between environmental and diseases such as parasitic mites and viruses. We compared the presence of honeybee-pathogenic viruses and Varroa infestation rate in four apiaries: commercial colonies that received treatment against Varroa …

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Varroa destructorand Viruses association in honey bee colonies under different climatic conditions

Agostina Giacobino, Ana Molineri, Adriana Pacini, Norberto Fondevila et autres

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Validación de una técnica de RT-PCR en tiempo real para la detección del virus de fiebre aftosa y evaluación de su desempeño en la infección aguda

Norberto Fondevila, Diego Compaired, Eduardo Maradei, Sergio Duffy

"Se validó una técnica de RT-PCR en tiempo real utilizando el termociclador y los reactivos del LightCycler 2.0 de Roche, según las recomendaciones de la Organización Mundial de Sanidad Animal, y se evaluó su desempeño para la detección del virus de fi …

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Validación de una técnica de RT-PCR en tiempo real para la detección del virus de fiebre aftosa y evaluación de su desempeño en la infección aguda

Norberto Fondevila, Diego Compaired, Eduardo Maradei, Sergio Duffy

A specific real time reverse transcription polymerase chain reaction (RT-PCRrt) for the detection of foot-and-mouth disease virus was validated using the LightCycler thermocycler 2.0 and its reagents as recommended by the World Organization for Animal Health and was assessed for the detection …

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Early protection against foot-and-mouth disease virus in cattle using an inactivated vaccine formulated with Montanide ESSAI IMS D 12802 VG PR adjuvant

Valeria Quattrocchi, S Pappalardo, Cecilia Langellotti, Eliana Smitsaart et autres

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Evaluation of total white blood cell count as a marker for proviral load of bovine leukemia virus in dairy cattle from herds with a high seroprevalence of antibodies against bovine leukemia virus

Irene Álvarez, Gerónimo Gutiérrez, Mariela Gammella, Cecilia Martínez et autres

OBJECTIVE: To determine the reference interval for WBC counts in Holstein dairy cows from herds with high seroprevalence for anti-bovine leukemia virus (BLV) antibodies, analyze the correlation of total WBC counts and blood proviral load (bPVL) in BLV-infected animals, and determine whether …

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Selection of Highly Susceptible Cell Lines to Foot and Mouth Disease Virus Infection

Osvaldo Zábal, Norberto Fondevila

Different non-established cultures were examined to find those that showed high sensitivity to Foot and Mouth Disease Virus (FMDV). Ovine kidney cultures showed high sensitivity to types A, O and C, and were suitable to detect viral infection in samples of animal, …

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Bovine leukemia virus p24 antibodies reflect blood proviral load

Gerónimo Gutiérrez, Hugo Carignano, Irene Álvarez, Cecilia Martínez et autres

BACKGROUND: Bovine leukemia virus (BLV) is worldwide distributed and highly endemic in Argentina. Among the strategies to prevent BLV dissemination, a control plan based on the selective segregation of animals according to their proviral load (PVL) is promising for our dairy productive …

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