Noticias

Utilización de leones marinos para facilitar diferentes actividades desarrolladas por la Armada Española

Publicado un nuevo artículo de divulgación en Documentos de opinión del Instituto Español de Estudios Estratégicos

La utilización de leones marinos permitiría mejorar la seguridad nacional, así como aumentar las capacidades operativas de la Armada Española, disminuyendo costes económicos y riesgos, en las misiones en las que participa… Leer más

Fitness cost and interference of Arm/Rmt aminoglycoside resistance methyltransferases with the RsmF housekeeping methyltransferase

Artículo de investigación publicado en Antimicrobial Agents and Chemotherapy

Arm/Rmt methyltransferases have emerged recently in pathogenic bacteria as enzymes that confer high-level resistance to 4,6 disubstituted aminoglycosides through methylation of the G1405 residue in the 16S rRNA. In prokaryotes, nucleotide methylations are the most common type of rRNA modification, and are introduced post- transcriptionally by a variety of site-specific housekeeping enzymes to optimize ribosomal function. Here we show that while the aminoglycoside resistance methyltransferase RmtC methylates G1405, it impedes methylation of the housekeeping methyltranferase RsmF at position C14… Leer más

Unexpected high responses to tuberculin skin-test in farmed red deer: implications for tuberculosis control

Preventive Veterinary Medicine publica este artículo de investigación

Tuberculosis (TB) in deer is a serious zoonotic disease of worldwide distribution. Detection of infected animals is usually performed using single or comparative skin testing (SST/CST), although false responses due to sensitization to other mycobacteria may occur, hampering diagnostic specificity. We describe the evolution of the responses to the SST, CST and to an in-house serological assay in a red deer farm subjected to regular TB testing in southern Spain in an attempt to understand the dynamics of possible non-specific reactions occurring under field conditions. We performed 2288 skin-tes… Leer más

Vacunas altamente inmunógenas: el método más eficaz de lucha frente a Salmonella

Publicado un nuevo artículo de divulgación en Selecciones Avícolas

En avicultura, la presencia de Salmonella en las granjas ha pasado de ser un problema de Sanidad Animal a una cuestión más grave concerniente al ámbito de la Salud Pública. El serovar Enteritidis -así como otras serovariedades de Salmonella spp.- produce un escaso número de bajas en las granjas y la gran mayoría de animales infectados carecen de sintomatología, por lo que aparentemente están sanos. El principal problema es que al localizarse Salmonella en el tracto digestivo de las aves, es fácilmente transmisible a través de las heces a sus producciones - carne y huevos - y, a través de estas… Leer más

Clonal diversity of Staphylococcus aureus originating from the small ruminants goats and sheep

Investigación publicada en Veterinary Microbiology

Staphylococcus aureus is an important pathogen in humans and many animal species. The prevalence of different clonal types in animal species remains largely unknown. We analyzed 267 S. aureus from intramammary infections in goats (47) and sheep (220) by spa typing, multi-locus sequence typing (MLST) and antimicrobial susceptibility. The most frequent spa types in goats were t337 (N=9), t759 (N=6) and t1534 (N=5). Sheep isolates mainly belonged to spa types t1534 (N=72), t2678 (N=29) and t3576 (N=20). Eighteen novel spa-types were observed; two from goat strains, 13 from sheep and three in both… Leer más

El virus Schmallemberg

Comunicación oral en Ciclo Los Debates del Colegio-Colegio Oficial de Veterinarios de Toledo 2012

Characterization of the immune response induced by a commercially available inactivated Bluetongue virus serotype 1 vaccine in sheep

The Scientific World Journal publica este artículo de investigación

The protective immune response generated by a commercial monovalent inactivated vaccine against bluetongue virus serotype 1 (BTV1) was studied. Five sheep were vaccinated, boost-vaccinated, and then challenged against BTV1 ALG/2006. RT-PCR did not detect viremia at any time during the experiment. Except a temperature increase observed after the initial and boost vaccinations, no clinical signs or lesions were observed. A specific and protective antibody response checked by ELISA was induced after vaccination and boost vaccination. This specific antibody response was associated with a significa… Leer más

Detection of Methicillin Resistant Staphylococcus aureus in Iberian pigs

Investigación publicada en Letters in Applied Microbiology

Aims: Iberian pigs are bred in Spain for production of high-value dry-cured products, whose export volumes are increasing. Animals are typically reared outdoors, though indoor farming is becoming popular. We compared carriage of Methicillin Resistance Staphylococcus aureus (MRSA) in Iberian pigs, raised indoors and outdoors, with intensively farmed Standard White pigs. Methods and Results:  From June 2007 to February 2008, 106 skin swabs were taken from Iberian pigs and 157 samples from Standard White pigs at slaughterhouses in Spain. We found that Iberian pigs carried MRSA, though with … Leer más

Quantitative Risk Assessment for the Introduction of African Swine Fever Virus into the European Union by Legal Import of Live Pigs

Transboundary and Emerging Diseases publica este artículo de investigación

The recent incursion and spread of African swine fever virus (ASFV) in the Russian Federation and Caucasus region, close to European Union (EU) borders, have increased the concerns regarding the probability of ASFV introduction into the EU. There are many potential routes of ASFV entry into EU, but here we specifically aimed to assess the probability of ASFV introduction by legal trade of pigs, which historically has been one of the most important ways of exotic diseases introduction into the EU. A stochastic model was used to estimate the monthly probability of ASFV introduction for each coun… Leer más

Progress in molecular typing of Mycobacterium avium subspecies paratuberculosis

Investigación publicada en Research in Veterinary Science

Mycobacterium avium subspecies paratuberculosis (M. a. paratuberculosis) is responsible for paratuberculosis or Johne`s disease, a chronic inflammation of the gastrointestinal tract in different animal species. Some studies have also established a link between this microorganism and Crohn`s disease in humans. Although, M. a. paratuberculosis is a difficult microorganism to cultivate in the laboratory (occasionally is non-cultivable), a proper molecular characterization of M. a. paratuberculosis is necessary to better understand the epidemiology of the disease, and design strategies to eradicat… Leer más