{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,12,31]],"date-time":"2025-12-31T07:00:47Z","timestamp":1767164447366,"version":"build-2238731810"},"reference-count":39,"publisher":"American Society for Microbiology","issue":"6","license":[{"start":{"date-parts":[[2017,5,23]],"date-time":"2017-05-23T00:00:00Z","timestamp":1495497600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2017,6,1]],"date-time":"2017-06-01T00:00:00Z","timestamp":1496275200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.asm.org\/non-commercial-tdm-license"}],"funder":[{"DOI":"10.13039\/501100000272","name":"DH | National Institute for Health Research","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100000272","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["journals.asm.org"],"crossmark-restriction":true},"short-container-title":["J Clin Microbiol"],"published-print":{"date-parts":[[2017,6]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    An\n                    <jats:italic>emm<\/jats:italic>\n                    32.2 invasive group A streptococcus (iGAS) outbreak occurred in Liverpool from January 2010 to September 2012. This genotype had not previously been identified in Liverpool, but was responsible for 32% (14\/44) of all iGAS cases reported during this time period. We performed a case-case comparison of\n                    <jats:italic>emm<\/jats:italic>\n                    32.2 iGAS cases with non-\n                    <jats:italic>emm<\/jats:italic>\n                    32.2 control iGAS cases identified in the Liverpool population over the same time period to assess patient risk factors for\n                    <jats:italic>emm<\/jats:italic>\n                    32.2 iGAS infection. The\n                    <jats:italic>emm<\/jats:italic>\n                    32.2 iGAS cases were confined to the adult population. We show that homelessness, intravenous drug use, and alcohol abuse predisposed patients to\n                    <jats:italic>emm<\/jats:italic>\n                    32.2 iGAS disease; however, no obvious epidemiological linkage between the patients with\n                    <jats:italic>emm<\/jats:italic>\n                    32.2 iGAS could be identified. Comparative whole-genome sequencing analysis of\n                    <jats:italic>emm<\/jats:italic>\n                    32.2 iGAS and non-\n                    <jats:italic>emm<\/jats:italic>\n                    32.2 control isolates was also performed to identify pathogen factors which might have driven the outbreak. We identified 19 genes, five of which had previously been implicated in virulence, which were present in all of the\n                    <jats:italic>emm<\/jats:italic>\n                    32.2 iGAS isolates but not present in any of the non-\n                    <jats:italic>emm<\/jats:italic>\n                    32.2 control isolates. We report that a novel\n                    <jats:italic>emm<\/jats:italic>\n                    32.2 genotype emerged in Liverpool in 2010 and identified a specific subset of genes, which could have allowed this novel\n                    <jats:italic>emm<\/jats:italic>\n                    32.2 genotype to persist in a disadvantaged population in the region over a 3-year period.\n                  <\/jats:p>","DOI":"10.1128\/jcm.00191-17","type":"journal-article","created":{"date-parts":[[2017,3,29]],"date-time":"2017-03-29T20:40:16Z","timestamp":1490820016000},"page":"1837-1846","update-policy":"https:\/\/doi.org\/10.1128\/asmj-crossmark-policy-page","source":"Crossref","is-referenced-by-count":14,"title":["Epidemiological and Molecular Characterization of an Invasive Group A Streptococcus\n                    <i>emm<\/i>\n                    32.2 Outbreak"],"prefix":"10.1128","volume":"55","author":[{"given":"Jennifer E.","family":"Cornick","sequence":"first","affiliation":[{"name":"Malawi Liverpool Wellcome Trust Clinical Research Programme, Blantyre, Malawi"},{"name":"Institute of Infection &amp; 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