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[Google Form] New Recording Submission! Foodborne pathogen detection
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Deeptivarshney authored Aug 22, 2024
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---
layout: tutorial_hands_on

title: "Pathogen detection from (direct Nanopore) sequencing data using Galaxy - Foodborne Edition"
title: Pathogen detection from (direct Nanopore) sequencing data using Galaxy - Foodborne
Edition
subtopic: metagenomics
tags:
- microgalaxy
- Nanopore data analysis
- Pathogens detection
- Phylogenetic tree
- Heatmap
- cyoa
- microgalaxy
- Nanopore data analysis
- Pathogens detection
- Phylogenetic tree
- Heatmap
- cyoa
level: Introductory
zenodo_link: "https://zenodo.org/record/11222469"
zenodo_link: https://zenodo.org/record/11222469
questions:
- What are the preprocessing steps to prepare ONT sequencing data for further analysis?
- How to identify pathogens using sequencing data?
- How to track the found pathogens through all your samples datasets?
- What are the preprocessing steps to prepare ONT sequencing data for further analysis?
- How to identify pathogens using sequencing data?
- How to track the found pathogens through all your samples datasets?
objectives:
- Check quality reports generated by FastQC and NanoPlot for metagenomics Nanopore data
- Preprocess the sequencing data to remove adapters, poor quality base content and host/contaminating reads
- Perform taxonomy profiling indicating and visualizing up to species level in the samples
- Identify pathogens based on the found virulence factor gene products via assembly, identify strains and indicate all antimicrobial resistance genes in samples
- Identify pathogens via SNP calling and build the consensus gemone of the samples
- Relate all samples' pathogenic genes for tracking pathogens via phylogenetic trees and heatmaps
time_estimation: "4h"
- Check quality reports generated by FastQC and NanoPlot for metagenomics Nanopore
data
- Preprocess the sequencing data to remove adapters, poor quality base content and
host/contaminating reads
- Perform taxonomy profiling indicating and visualizing up to species level in the
samples
- Identify pathogens based on the found virulence factor gene products via assembly,
identify strains and indicate all antimicrobial resistance genes in samples
- Identify pathogens via SNP calling and build the consensus gemone of the samples
- Relate all samples' pathogenic genes for tracking pathogens via phylogenetic trees
and heatmaps
time_estimation: 4h
contributions:
authorship:
- bebatut
- EngyNasr
- paulzierep
editing:
- hrhotz
- wm75
funding:
- gallantries
- eosc-life
authorship:
- bebatut
- EngyNasr
- paulzierep
editing:
- hrhotz
- wm75
funding:
- gallantries
- eosc-life
redirect_from:
- /topics/metagenomics/tutorials/pathogen-detection-from-nanopore-foodborne-data/tutorial
- "/topics/metagenomics/tutorials/pathogen-detection-from-nanopore-foodborne-data/tutorial"
edam_ontology:
- topic_3174 # Metagenomics
- topic_3305 # Public health and epidemiology
- topic_0637 # Taxonomy
- topic_0196 # Sequence assembly
- topic_0634 # Pathology
- topic_0080 # Sequence analysis

- topic_3174
- topic_3305
- topic_0637
- topic_0196
- topic_0634
- topic_0080
recordings:
- youtube_id: gQHb_jkj-Z0
date: '2023-05-01'
Expand All @@ -54,10 +58,21 @@ recordings:
- EngyNasr
captioners:
- EngyNasr
- youtube_id: rGP-BKYwUbc
length: 1H55M
galaxy_version: '24.1.2.dev0 '
date: '2024-08-16'
speakers:
- EngyNasr
captioners:
- EngyNasr
bot-timestamp: 1723837296


---



Food contamination with pathogens is a major burden on our society. In the year 2019, foodborne pathogens caused 137 hospitalisations in Germany [(BVL 2019)](https://www.bvl.bund.de/SharedDocs/Berichte/10_BELA_lebensmittelbed_Krankheitsausbruechen_Dtl/Jahresbericht2019.pdf?__blob=publicationFile&v=4). Globally, they affect an estimated 600 million people a year and impact socioeconomic development at different levels. These outbreaks are mainly due to _Salmonella spp._ followed by _Campylobacter spp._ and Noroviruses, as studied by the [__Food safety - World Health Organization (WHO)__](https://www.who.int/publications/i/item/9789241565165).

During the investigation of a foodborne outbreak, a microbiological analysis of the potentially responsible food vehicle is performed in order to detect the responsible pathogens and identify the contamination source. By default, the [__European Regulation (EC)__](https://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2005:338:0001:0026:EN:PDF) follows ISO standards to detect bacterial pathogens in food: pathogens are detected and identified by **stepwise cultures** on selective media and/or **targeting specific genes with real-time PCRs**. The current gold standard is Pulsed-field Gel Electrophoresis (PFGE) or Multiple-Locus Variable Number Tandem Repeat Analysis (MLVA) to characterize the detected strains. These techniques have some disadvantages.
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