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Global, real-time microbiological genomic identification and control project
Frank M. Aarestrup Center for genomic Epidemiology 1 1
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Bacterial characterisation is used for
Predict treatment possibilities Continuous surveillance Predict virulence Tracing routes of transmission Control of cause of treatment failure Analyse population structures
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Bacterial identification and typing ... Evolution of typing methods
IS-typing flj-typing RFLP VTNR REA PFGE Plasmid profiles MLEE RAPD Phage typing MLST AFLP Bacteriocin typing Serotyping 1920 1940 1960 1970 1980 2000 Evolution of typing methods
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World Largest HUS Epidemic Due to EHEC
Germany (RKI, July, 26th, 2011) EHEC 3,481 cases 18 deaths HUS 852 cases 32 deaths Europe / North America (WHO, July 21st, 2011) 89 cases no deaths 52 cases 2 deaths Cases Deaths EHEC HUS RKI, July 26th, 2011, adapted [
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Typing strategies Cheap methods for surveillance
Outbreak investigated by more than one method No common method combination applies to all situations
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E. coli, Salmonella Campylobacter Neisseria Different clonal populations
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Purpose of Center for Genomic Epidemiology
Provide a proof of concept of combining bioinformatics with global epidemiology in real-time And provide a useful facility for frontline users
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Store in database Gb upload MLST Novel typing Phylogeny Etc De novo assembly Template bases assembly Resistance Unique project ID (= Directory) 16 S typing Client side assembly/ compression Novel pathogenecity Geo mapping ++ Virulence Real time return of preliminary data (JS tasting on files)
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List of genes (100% or >95%) Theoretical resistance phenotype
Resfinder NGS Illumina PacBio 454.. Assembly pipeline Resistance gene profile Sanger Fasta Fasta List of genes (100% or >95%) Accession numbers Theoretical resistance phenotype Optional BLAST output Sanger
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Front page
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Results 16
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Computing needs Denmark (1 million sequences/year):
2h CPU time + 10mb storage for 1,000,000 genomes per year in 6 years = 230 Cores, 60TB storage needed EU (100 million sequences/year) 2,300 cores, 6PB storage Global needs (1 billion sequences/year) 23,000 cores, 60PB storage ~ 30th biggest computer (Smaller than Airbus’)
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Building global partnership
Global consensus meetings Bruxelles (Sep. 2011) Washington DC (March 2012) Involving partners as curators of in silico arrays and/or specific species Proof of concept applications and projects Case stories Hospital diagnostics V. cholerae from Nepal MRSA CC398 phylo-evolution Evalution on Campylobacter, E. coli, Salmonella
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Washington – March 2012 >100 participants covering, governmental institutions, universities, hospitals and companies FDA, CDC, FBI, NCBI, DoD, USDA, PHAC, Harvard, Maryland, Virginia, Los Alamos, TGen, Aligent, Broad EBI, eCDC, Sanger, Oxford, DTU, RIVM, FZB BGI, DDBJ, etc
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20 November 201820 November 201820 November 2018
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Conclusions There is a need and we believe it is possible
Need to broaden discussion to a larger forum Need for special groups working on Global participation (198 countries!!!) Repository (NCBI, EBI, DDBJ) Access (Political, legal) Output (simple & advanced, diagnostic & epidemiology, genes & species) Taxonomy
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When will WGS replace all other techniques?
The - £ $ € - question WGS – today 100 € going to 50 or 10? Traditional: Identification – 10 € Serotyping – 25 € Susceptibility testing – € PFGE – 50 € MLST – 250 € Molecular characterisation – 10 – 1000 € Already competitive 20 November November November 2018
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22 publications
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