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Zoekresultaten - 147 results

Validation of a Targeted LC-MS/MS Method for Cereulide and Application in Food and Faeces.

is an emetic toxin produced by some strains of. This bacterial toxin, a cyclic 1.2 kDa dodecadepsipeptide, is stable to heat and acids and causes nausea and vomiting when ingested via contaminated ...

Strain-level characterization without culture enrichment? Easing and accelerating outbreak investigation using shotgun metagenomics facilitated with nanopore adaptive sampling

adaptive sampling, following whole genome amplification to increase the amount of genetic material to meet sequencing standards. The strain-level data analysis was performed as previously described (Buytaers ...

Microbial quality analysis of falsified medicines seized by controling agencies

refers to the amount and type of microorganisms present in a sample and reflects the level of biological contamination and associated potential health risks upon consumption of the product. We initially ...

Time series modelling for wastewater-based epidemiology of COVID-19: A nationwide study in 40 wastewater treatment plants of Belgium, February 2021 to June 2022

of daily flow rate, pepper mild mottle virus (PMM oV) concentration, a measure of human faeces in wastewater, and variants (alpha, delta, and omicron strains) on SARS-CoV-2 RNA levels in wastewater. ...

A global genomic analysis of Salmonella Concord reveals lineages with high antimicrobial resistance in Ethiopia.

super-lineages. Super-lineage A is composed of eight S. Concord lineages, of which four are associated with multiple countries and low levels of AMR. Other lineages are restricted to Ethiopia and horizontally ...

Implementation of MALDI-TOF Mass Spectrometry to Identify Fungi From the Indoor Environment as an Added Value to the Classical Morphology-Based Identification Tool

molds is generally performed by microscopy. This method has, however, some limitations as it requires mycologists with high expertise while identification is often limited to the genus level. Therefore, ...

Pulmonary Aspergillosis in Humboldt Penguins—Susceptibility Patterns andMolecular Epidemiology of Clinical and Environmental Aspergillus fumigatus Isolates from a Belgian Zoo

environment (n = 8) and from Humboldt penguins (n = 6). The TR34 / L98H mutation was observed in all resistant environmental strains, and in two resistant veterinary strains. To the best of our knowledge, this ...

Development of strain-level shotgun metagenomics approaches to detect and characterize microbiological contaminants in the context of food safety

contaminant present in the sample at once, possibly also at the SNP level. At the time this study started, shotgun metagenomics for the study of food contaminants was in its infancy. Moreover, strain-level ...

Identification of Mycobacterium abscessus Subspecies by MALDI-TOF Mass Spectrometry and Machine Learning.

level. Moreover, an improved model with Spanish isolates was able to identify 88.9% of strains collected in other countries. In addition, differences in culture media, colony morphology, and geographic ...

Metagenomic Characterization of Multiple Genetically Modified Bacillus Contaminations in Commercial Microbial Fermentation Products

reported in numerous commercial microbial fermentation produce types, leading to several rapid alerts at the European level. The aim of this study was to investigate the added value of shotgun metagenomic ...

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