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Noticias de junio de 2019

24 de junio de 2019

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Host Richness Increases Tuberculosis Disease Risk in Game-Managed Areas

Investigación publicada en Microorganisms

Current scientific debate addresses whether species richness in animal communities may negatively moderate pathogen transmission and disease outcome (dilution effect), or to the contrary, if disease emergence benefits from more diverse community assemblages (amplification effect). The result may not depend exclusively on patterns of host species biodiversity but may depend on the specific composition of reservoir hosts and vectors, and their ecology. Host–pathogen interactions have shaped variations in parasite virulence, transmissibility and specificity. In the same way the importance of fact… Leer más

19 de junio de 2019

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Evolución del método histológico diferencial del preparado/producto cárnico: falta de soluciones y sensibilidad de la administración

Comunicación oral en V Congreso Internacional en Calidad y Seguridad Alimentaria

18 de junio de 2019

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Veterinary Research

Weaned piglets: another factor to be considered for the control of Salmonella infection in breeding pig farms

Artículo de investigación publicado en Veterinary Research

Field studies on Salmonella infection in suckling piglets are scarce due to the intrinsic difficulties of collecting proper samples (i.e. tonsils or mesenteric lymph nodes), and most of them rely on the analysis of rectal swabs that limit their accuracy. We used 495 slaughtered 4-weeks-old male piglets intended for human consumption from 5 Salmonella-seropositive breeding farms to collect gastrointestinal packages and perform a thorough detection of Salmonella on mesenteric lymph nodes and intestinal content. The overall prevalence of both infection and shedding was high (≈ 36%) in… Leer más

14 de junio de 2019

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Frontiers in Microbiology

High Load of Deformed Wing Virus and Varroa destructor Infestation Are Related to Weakness of Honey Bee Colonies in Southern Spain

Frontiers in Microbiology publica este artículo de investigación

Many factors, including pathogens, contribute to the continuing losses of colonies of the honey bee Apis mellifera, which has led to steady population decline. In particular, colony losses have been linked to deformed wing virus (DWV) and the Varroa destructor mite. To clarify the potential role of these two pathogens in honey bee colony weakening and loss, we sampled colonies in southern Spain during a 21-month period and analyzed the samples for loads of four viruses and varroa. Loads of DWV and black queen cell virus as well as varroa infestation negatively correlated with colony vigor as m… Leer más

12 de junio de 2019

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Moving beyond descriptive epidemiology

Entrevista concedida a CAHFS News. University of Minnesota

“Often we are not able to identify all the factors related to the space, but we can certainly look into the distribution of these health events,” says Julio Alvarez, DVM, PhD, who was among the course instructors who illustrated the full extent of U of M resources that can be utilized in future collaborations with MDH. “We can study the spatial patterns and then test whether or not those patterns are statistically significant.” Alvarez is an adjunct professor at CVM who primarily works at the Veterinary Health Surveillance Center at the Complutense University of Madrid, where his research take… Leer más

6 de junio de 2019

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IX Jornadas de Jóvenes Investigadores

Caracterización del gen groEl en Streptococcus equi subsp. equi y su relación con el fenotipo y el genotipo de los aislamientos

Comunicación oral en IX Jornadas de Jóvenes Investigadores

5 de junio de 2019

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Blog Madri+d de Seguridad Alimentaria y Alimentación

La secuenciación genómica, aliada en la lucha contra la resistencia a los antimicrobianos

Nuevo post en el Blog Madri+d de Seguridad Alimentaria y Alimentación

1 de junio de 2019

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Veterinary and Animal Science

Diagnostic interaction between bovine tuberculosis (bTB) and Johne`sdisease in bTB highly prevalent dairy farms of Uruguay

Veterinary and Animal Science publica este artículo de investigación

The consolidation of the dairy industry, with increase in sizes, density and productivity of the herds, was associated to unprecedented bovine tuberculosis (bTB) prevalence levels in dairy herds in Uruguay, where Johne`s disease (JD), another mycobacterial disease, is also prevalent. Here, we aimed to characterize the association between bTB- and JD-diagnostic results in two heavily bTB- and JD-coinfected dairy herds. Results from bTB-intradermal tests and JD-ELISA in 686 cows indicated a significantly (P < 0.001) higher frequency of bTB-positive animals in the JD-positive population, in which… Leer más

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