Get to Know Your Neighbors: Characterization of Close Isolates and Toxin Profile Diversity in the Group.

Unexpected atypical isolates of occasionally challenge conventional microbiology and even the most advanced techniques for anthrax detection. For anticipating and gaining trust, 65 isolates of of diverse origin were sequenced and characterized. The BTyper3 tool was used for assignation to genomospecies (34), (29) and (2), as well as virulence factors and toxin profiling.

Reference genome assembly and annotation of two strains from Etosha National Park, Namibia.

(.) poses health and security issues. Here, we report the reference genome assembly of two .

Genomic and RT-qPCR analysis of trimethoprim-sulfamethoxazole and meropenem resistance in Burkholderia pseudomallei clinical isolates.

Background: Melioidosis is an endemic disease in southeast Asia and northern Australia caused by the saprophytic bacteria Burkholderia pseudomallei, with a high mortality rate. The clinical presentation is multifaceted, with symptoms ranging from acute septicemia to multiple chronic abscesses. Here, we report a chronic case of melioidosis in a patient who lived in Malaysia in the 70s and was suspected of contracting tuberculosis.

Case Report of an Injectional Anthrax in France, 2012.

(1) Background: is a spore-forming, Gram-positive bacterium causing anthrax, a zoonosis affecting mainly livestock. When occasionally infecting humans, provokes three different clinical forms: cutaneous, digestive and inhalational anthrax. More recently, an injectional anthrax form has been described in intravenous drug users.

Normalization of test and evaluation of biothreat detection systems: overcoming microbial air content fluctuations by using a standardized reagent bacterial mixture.

Test and evaluation of engineered biothreat agent detection systems ("biodetectors") are a challenging task for government agencies and industries involved in biosecurity and biodefense programs. In addition to user friendly features, biodetectors need to perform both highly sensitive and specific detection, and must not produce excessive false alerts. In fact, the atmosphere displays a number of variables such as airborne bacterial content that can interfere with the detection process, thus impeding comparative tests when carried out at different times or places.

Analysis of the genetic distribution among members of Clostridium botulinum group I using a novel multilocus sequence typing (MLST) assay.

Clostridium botulinum is the etiological agent of botulism. Due to food-borne poisoning and the potential use of the extremely toxic botulinum neurotoxin (BoNT) from C. botulinum in bioterror or biocrime related actions, reliable high resolution typing methods for discriminating C.

Clostridium botulinum group I strain genotyping by 15-locus multilocus variable-number tandem-repeat analysis.

Clostridium botulinum is a taxonomic designation that encompasses a broad variety of spore-forming, Gram-positive bacteria producing the botulinum neurotoxin (BoNT). C. botulinum is the etiologic agent of botulism, a rare but severe neuroparalytic disease.

Validation of ten new polymorphic tandem repeat loci and application to the MLVA typing of Burkholderia pseudomallei isolates collected in Singapore from 1988 to 2004.

Multiple locus variable number of tandem repeat (VNTR) analysis (MLVA) has been shown to be very promising for the typing of Burkholderia pseudomallei and mallei. The currently available set of loci requires high resolution allele size measurement due to short repeat units. The present work was aimed at expanding the available set of VNTR loci, and generating data from a collection of 102 B.

Selection and validation of a multilocus variable-number tandem-repeat analysis panel for typing Shigella spp.

The Shigella genus has historically been separated into four species, based on biochemical assays. The classification within each species relies on serotyping. Recently, genome sequencing and DNA assays, in particular the multilocus sequence typing (MLST) approach, greatly improved the current knowledge of the origin and phylogenetic evolution of Shigella spp.

Variable number of tandem repeats in Salmonella enterica subsp. enterica for typing purposes.

The genomic sequences of Salmonella enterica subsp. enterica strains CT18, Ty2 (serovar Typhi), and LT2 (serovar Typhimurium) were analyzed for potential variable number tandem repeats (VNTRs). A multiple-locus VNTR analysis (MLVA) of 99 strains of S.

DNA-DNA hybridization study of Burkholderia species using genomic DNA macro-array analysis coupled to reverse genome probing.

The present study was aimed at simplifying procedures to delineate species and identify isolates based on DNA-DNA reassociation. DNA macro-arrays harbouring genomic DNA of reference strains of several Burkholderia species were produced. Labelled genomic DNA, hybridized to such an array, allowed multiple relative pairwise comparisons.