The rise and spread of a new pathogen: Seroresistant Moraxella catarrhalis


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WIRTH, Thierry, Giovanna MORELLI, Barica KUSECEK, Alex VAN BELKUM, Cindy VAN DER SCHEE, Axel MEYER, Mark ACHTMAN, 2007. The rise and spread of a new pathogen: Seroresistant Moraxella catarrhalis. In: Genome Research. 17(11), pp. 1647-1656. ISSN 1088-9051. Available under: doi: 10.1101/gr.6122607

@article{Wirth2007sprea-7238, title={The rise and spread of a new pathogen: Seroresistant Moraxella catarrhalis}, year={2007}, doi={10.1101/gr.6122607}, number={11}, volume={17}, issn={1088-9051}, journal={Genome Research}, pages={1647--1656}, author={Wirth, Thierry and Morelli, Giovanna and Kusecek, Barica and van Belkum, Alex and van der Schee, Cindy and Meyer, Axel and Achtman, Mark} }

<rdf:RDF xmlns:dcterms="" xmlns:dc="" xmlns:rdf="" xmlns:bibo="" xmlns:dspace="" xmlns:foaf="" xmlns:void="" xmlns:xsd="" > <rdf:Description rdf:about=""> <dc:contributor>van der Schee, Cindy</dc:contributor> <dcterms:isPartOf rdf:resource=""/> <dc:creator>Morelli, Giovanna</dc:creator> <dc:date rdf:datatype="">2011-03-24T17:32:52Z</dc:date> <dcterms:title>The rise and spread of a new pathogen: Seroresistant Moraxella catarrhalis</dcterms:title> <dc:creator>Wirth, Thierry</dc:creator> <dc:contributor>van Belkum, Alex</dc:contributor> <dc:creator>van der Schee, Cindy</dc:creator> <bibo:uri rdf:resource=""/> <dcterms:rights rdf:resource=""/> <dspace:hasBitstream rdf:resource=""/> <dc:format>application/pdf</dc:format> <dcterms:hasPart rdf:resource=""/> <dc:contributor>Kusecek, Barica</dc:contributor> <dcterms:issued>2007</dcterms:issued> <dcterms:abstract xml:lang="eng">The nosocomial human pathogen Moraxella catarrhalis is one the most important agents of human respiratory tract infections. This species is composed of two distinct lineages, one of only moderate virulence, the so-called serosensitive subpopulation, and a second, the seroresistant one, which is enriched among strains that harbor two major virulence traits: complement resistance and adherence to epithelial cells. Using a suite of population genetics tools, we show that the seroresistant lineage is also characterized by higher homologous recombination and mutation rates at housekeeping genes relative to its less pathogenic counterpart. Thus, sex and virulence have evolved in tandem in M. catarrhalis. Moreover, phylogenetic and Bayesian analyses that take into account recombination between the two clades show that the ancestral group was avirulent, is possibly 70 million years old, and must have infected mammals prior to the evolution of humans, which occurred later. The younger seroresistant isolates went through an important population expansion some 5 million years ago, coincident with the hominid expansion. This rise and spread was possibly coupled with a host shift and the acquisition of virulence genes.</dcterms:abstract> <dcterms:available rdf:datatype="">2011-03-24T17:32:52Z</dcterms:available> <dc:contributor>Wirth, Thierry</dc:contributor> <dc:contributor>Meyer, Axel</dc:contributor> <dc:creator>Meyer, Axel</dc:creator> <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/> <dc:language>eng</dc:language> <dc:creator>Kusecek, Barica</dc:creator> <foaf:homepage rdf:resource="http://localhost:8080/jspui"/> <dc:creator>Achtman, Mark</dc:creator> <dc:rights>terms-of-use</dc:rights> <dc:contributor>Achtman, Mark</dc:contributor> <dcterms:bibliographicCitation>First publ. in: Genome Research 17 (2007), pp. 1647-1656</dcterms:bibliographicCitation> <dc:creator>van Belkum, Alex</dc:creator> <dc:contributor>Morelli, Giovanna</dc:contributor> <dspace:isPartOfCollection rdf:resource=""/> </rdf:Description> </rdf:RDF>

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