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Last research news
February 1st, 2012
Vía publiDB
Chryseobacterium oncorhynchi sp. nov., isolated from rainbow trout (Oncorhynchus mykiss)
Investigation published in Systematic and Applied Microbiology
Genotypic and phenotypic analyses were performed on five Gram-negative, catalase and oxidasepositive, rod-shaped bacteria isolated from the gill and liver of four rainbow trout. Studies based on comparative 16S rRNA gene sequence analysis showed that the five new isolates shared 99.8–100% sequence similarity and that they belong to the genus Chryseobacterium. The nearest phylogenetic neighbours of the strain 701B-08T were Chryseobacterium ureilyticum F-Fue-04IIIaaaaT (99.1% 16S rRNA gene sequence similarity) and Chryseobacterium joosteii LMG 18212T (98.6%). DNA–DNA hybridization values between…
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February 1st, 2012
Vía publiDB
Tuberculosis due to Mycobacterium bovis and Mycobacterium caprae in sheep
Investigation article published in The Veterinary Journal
Tuberculosis was diagnosed in three flocks of sheep in Galicia, Spain, in 2009 and 2010. Two flocks were infected with Mycobacterium bovis and one flock was infected with Mycobacterium caprae. Infection was confirmed by the comparative intradermal tuberculin test, bacteriology, molecular analysis and histopathology. Sheep have the potential to act as a reservoir for tuberculosis…
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February 1st, 2012
Vía publiDB
First isolation of the anamorph of Kazachstania heterogenica from a fatal infection in a primate host
Medical Mycology publish this investigation article
We describe the isolation of the anamorph of the ascomycetous yeast Kazachstania heterogenica from a fatal infection in a 2 year, 9-month-old female white-handed gibbon (Hylobates lar). The yeast was observed in histological sections (lung and intestine) and co-isolated with the bacterium Escherichia coli from different internal organs. This is the first report of the recovery of this yeast from a fatal infection in a primate host…
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February 1st, 2012
Vía publiDB
Diagnosis of Tuberculosis in Camelids: Old Problems, Current Solutions and Future Challenges
Investigation published in Transboundary and Emerging Diseases
In spite of great efforts for its control and eradication, tuberculosis remains one of the most important zoonosis worldwide. Its causative agents, the members of the Mycobacterium tuberculosis complex, have a wide host range that complicates the epidemiology of this disease. Among susceptible species to these pathogens, camelids from the New World (llama, alpaca and vicuña) and Old World (Bactrian camel and dromedary) are acquiring an increasing importance in several European countries because of its growing number and could act as reservoirs of the disease for livestock and humans in their n…
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February 1st, 2012
Vía publiDB
Tuberculosis in goats: Assessment of current in vivo cell-mediated and antibody-based diagnostic assays
Investigation article published in The Veterinary Journal
Tuberculosis in goats, mainly caused by Mycobacterium bovis and M. caprae, is a zoonotic disease with implications for public health, as well as having an economic impact due to decreased goat production, increased mortality rates and costs of diagnosis. There is an increasing need for surveillance of tuberculosis-infected goat herds, particularly in countries that are not officially free of bovine tuberculosis, and goats sharing farms with cattle should be subjected to the official tuberculin test. In Spain, some regions have programmes for the control of tuberculosis in goats, applying the s…
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January 27th, 2012
Vía publiDB
Application of the Enfer chemiluminescent multiplex ELISA system for the detection of Mycobacterium bovis infection in goats
Veterinary Microbiology publish this investigation article
A study was conducted to optimise a multiplex serological immunoassay for use in identification of goats infected with Mycobacterium bovis. To assess assay specificity, 31 goats with a history of being free from M. bovis infection were used. To determine assay sensitivity, 180 Single Intradermal Comparative Tuberculin test (SICTT) positive goats were recruited. Additionally, 286 SICTT negative goats classed as potentially exposed animals present in the same positive herds were also included in the study. The results of the assay demonstrated a specificity of 100%. The multiplex assay detected …
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January 1st, 2012
Vía publiDB
Septicemic salmonellosis caused by Salmonella Hessarek in wintering and migrating song thrushes (Turdus philomelos) in Spain
Journal of Wildlife Diseases publish this investigation article
We investigated two mortality events in wintering and migrating Song Thrushes (Turdus philomelos) in Catalonia, northeastern Spain in 2009 and 2010. Both episodes occurred in late February to mid-March during the spring migration. Salmonellosis produced by the serotype Salmonella enterica subsp. enterica serotype Hessarek (S. Hessarek) was identified as the cause of death in both episodes. Poor body condition, marked splenomegaly, and microscopic disseminated intravascular coagulation with numerous intravascular and tissular bacteria were the most consistent findings. Macro-restriction profili…
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January 1st, 2012
Vía publiDB
Molecular diagnosis of lobomycosis-like disease in a bottlenose dolphin in captivity
Investigation article published in Medical Mycology
We report the diagnosis and molecular characterization of lobomycosis-like lesions in a captive bottlenose dolphin. The clinical picture and the absence of growth in conventional media resembled the features associated with Lacazia loboi. However sequencing of ribosomal DNA and further phylogenetic analyses showed a novel sequence more related to Paracoccidioides brasilensis than to L. loboi. Moreover, the morphology of the yeast cells differed from those L. loboi causing infections humans. These facts suggest that the dolphin lobomycosis-like lesions might have been be caused by different a d…
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December 15th, 2011
Sergio González Domínguez
The European Reference Laboratory for bovine tuberculosis holds its third workshop
The European Reference Laboratory (EURL) for bovine tuberculosis, located in VISAVET , the Health Surveillance Centre of Complutense University of Madrid , organized from 15 to 16 December 2011 a European meeting, where will study the advances in diagnostic techniques and control of the disease, as well as achievements in standardization
The eradication of infection in cattle by Mycobacterium tuberculosis complex species causing disease remains one of the main objectives of the European Union, which annually spends significant efforts in reducing the levels of prevalence and incidence.
Despite the progress made with regard to understanding the pathogenesis of the disease and its possible diagnosis has not been achieved to eradicate, due to a number of factors that, in certain epidemiological contexts, complicate its control.
The variability inherent in the intradermal test, a diagnostic technique, which it is very difficult standardize. It must be coordinated efforts by scientific community and government for its optimization. Similarly, the potential development of complementary diagnostic methods in certain situations opens new possibilities in the field of fight against the disease should be evaluated accordingly.
The meeting was attended representing DG Health and Consumers of the European Commission, the EURL, 23 national reference laboratories (NRLS) in Europe and the Ministry of Environment and Rural and Marine Affairs of Spain.…
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December 15th, 2011
Vía publiDB
Large-scale screening of a targeted Enterococcus faecalis mutant library identifies envelope fitness factors
PLoS ONE publish this investigation article
Spread of antibiotic resistance among bacteria responsible for nosocomial and community-acquired infections urges for novel therapeutic or prophylactic targets and for innovative pathogen-specific antibacterial compounds. Major challenges are posed by opportunistic pathogens belonging to the low GC% Gram-positive bacteria. Among those, Enterococcus faecalis is a leading cause of hospital-acquired infections associated with life-threatening issues and increased hospital costs. To better understand the molecular properties of enterococci that may be required for virulence, and that may explain t…
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