{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2024,6,21]],"date-time":"2024-06-21T14:47:20Z","timestamp":1718981240005},"reference-count":57,"publisher":"American Society for Microbiology","issue":"14","license":[{"start":{"date-parts":[[2008,7,15]],"date-time":"2008-07-15T00:00:00Z","timestamp":1216080000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.asm.org\/non-commercial-tdm-license"}],"content-domain":{"domain":["journals.asm.org"],"crossmark-restriction":true},"short-container-title":["Appl Environ Microbiol"],"published-print":{"date-parts":[[2008,7,15]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n          <jats:p>\n            In this study, the association between genotypic and selected phenotypic characteristics was examined in a collection of Canadian\n            <jats:italic>Escherichia coli<\/jats:italic>\n            O157:H7 strains isolated from humans and cattle in the provinces of Alberta, Ontario, Saskatchewan, and Quebec. In a subset of 69 strains selected on the basis of specific phage types (PTs), a strong correlation between the lineage-specific polymorphism assay (LSPA6) genotype and PT was observed with all strains of PTs 4, 14, 21, 31, 33, and 87 belonging to the LSPA6 lineage I (LSPA6-LI) genotype, while those of PTs 23, 45, 67, and 74 belonged to LSPA6 lineage II (LSPA6-LII) genotypes. This correlation was maintained when additional strains of each PT were tested.\n            <jats:italic>E. coli<\/jats:italic>\n            O157:H7 strains with the LSPA6-LI genotype were much more common in the collection than were the LSPA6-LII or lineage I\/II (LSPA6-LI\/II)-related genotypes (82.6, 11.2, and 5.8%, respectively). Of the strains tested, proportionately more LSPA6-LI than LSPA6-LII genotype strains were isolated from humans (52.7% versus 19.7%) than from cattle (47.8% versus 80.2%). In addition, 96.7% of the LSPA6-LII strains carried the\n            <jats:italic>stx<\/jats:italic>\n            <jats:sub>2c<\/jats:sub>\n            variant gene, while only 50.0% of LSPA6-LI\/II and 2.7% of LSPA6-LI strains carried this gene. LSPA6-LII strains were also significantly more likely to possess the colicin D gene,\n            <jats:italic>cda<\/jats:italic>\n            (50.8% versus 23.2%), and have combined resistance to streptomycin, sulfisoxazole, and tetracycline (72.1% versus 0.9%) than were LSPA6-LI strains. The LSPA6 genotype- and PT-related characteristics identified may be important markers of specific ecotypes of\n            <jats:italic>E. coli<\/jats:italic>\n            O157:H7 that have unique epidemiological and virulence characteristics.\n          <\/jats:p>","DOI":"10.1128\/aem.02821-07","type":"journal-article","created":{"date-parts":[[2008,5,17]],"date-time":"2008-05-17T00:58:24Z","timestamp":1210985904000},"page":"4314-4323","update-policy":"http:\/\/dx.doi.org\/10.1128\/asmj-crossmark-policy-page","source":"Crossref","is-referenced-by-count":46,"title":["Genotypic Characterization and Prevalence of Virulence Factors among Canadian\n            <i>Escherichia coli<\/i>\n            O157:H7 Strains"],"prefix":"10.1128","volume":"74","author":[{"given":"Kim","family":"Ziebell","sequence":"first","affiliation":[{"name":"Laboratory for Foodborne Zoonoses, Public Health Agency of Canada, Guelph, Ontario N1G 3W4, Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Marina","family":"Steele","sequence":"additional","affiliation":[{"name":"Laboratory for Foodborne Zoonoses, Public Health Agency of Canada, Guelph, Ontario N1G 3W4, Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yongxiang","family":"Zhang","sequence":"additional","affiliation":[{"name":"Laboratory for Foodborne Zoonoses, Public Health Agency of Canada, Lethbridge, Alberta T1J 3Z4, Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Andrew","family":"Benson","sequence":"additional","affiliation":[{"name":"Department of Food Science and Technology, University of Nebraska, Lincoln, Nebraska 68583-0919"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Eduardo N.","family":"Taboada","sequence":"additional","affiliation":[{"name":"Laboratory for Foodborne Zoonoses, Public Health Agency of Canada, Lethbridge, Alberta T1J 3Z4, Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chad","family":"Laing","sequence":"additional","affiliation":[{"name":"Laboratory for Foodborne Zoonoses, Public Health Agency of Canada, Lethbridge, Alberta T1J 3Z4, Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Scott","family":"McEwen","sequence":"additional","affiliation":[{"name":"Department of Population Medicine, University of Guelph, Guelph, Ontario N1G 2W1, Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bruce","family":"Ciebin","sequence":"additional","affiliation":[{"name":"Ontario Ministry of Health and Long-Term Care, Hamilton Public Health Laboratory, Hamilton, Ontario L8N 3R5, Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Roger","family":"Johnson","sequence":"additional","affiliation":[{"name":"Laboratory for Foodborne Zoonoses, Public Health Agency of Canada, Guelph, Ontario N1G 3W4, Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Victor","family":"Gannon","sequence":"additional","affiliation":[{"name":"Laboratory for Foodborne Zoonoses, Public Health Agency of Canada, Lethbridge, Alberta T1J 3Z4, Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"235","reference":[{"key":"e_1_3_2_2_2","doi-asserted-by":"publisher","DOI":"10.1093\/infdis\/155.4.806"},{"key":"e_1_3_2_3_2","doi-asserted-by":"publisher","DOI":"10.4315\/0362-028X-63.9.1167"},{"key":"e_1_3_2_4_2","doi-asserted-by":"publisher","DOI":"10.1007\/978-1-4899-1828-4_6"},{"key":"e_1_3_2_5_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0923-2508(98)80001-6"},{"key":"e_1_3_2_6_2","doi-asserted-by":"publisher","DOI":"10.1128\/AEM.01035-06"},{"key":"e_1_3_2_7_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0732-8893(02)00474-1"},{"key":"e_1_3_2_8_2","doi-asserted-by":"publisher","DOI":"10.1128\/jcm.34.11.2812-2814.1996"},{"key":"e_1_3_2_9_2","doi-asserted-by":"publisher","DOI":"10.1139\/m91-014"},{"key":"e_1_3_2_10_2","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.0603038103"},{"key":"e_1_3_2_11_2","first-page":"267","year":"1981","unstructured":"Crosa, J. 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