{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,11]],"date-time":"2025-11-11T12:34:00Z","timestamp":1762864440486},"reference-count":0,"publisher":"Cambridge University Press (CUP)","issue":"3","license":[{"start":{"date-parts":[[1997,12,1]],"date-time":"1997-12-01T00:00:00Z","timestamp":880934400000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Epidemiol. Infect."],"published-print":{"date-parts":[[1997,12]]},"abstract":"<jats:p>Plasmid profile analysis by agarose gel electrophoresis was \n\nperformed on 42 drug resistant \n\nstrains of <jats:italic>Shigella boydii<\/jats:italic> serotypes 1\u20135, 8, 10, 12\u201314,\n \n\ncollected between 1974 and 1985 from \n\nendemic cases of shigellosis in Ethiopia, and their <jats:italic>Escherichia coli<\/jats:italic>\n \n\nK12 transconjugants. \n\nResistance factors (R factors) were further characterized by incompatibility\n testing.<\/jats:p><jats:p>Patterns of small plasmids, less than 15 kb, were similar within \n\neach of the individual \n\n<jats:italic>S. boydii<\/jats:italic> serotypes. Plasmids of about 3\u00b73\u20133\u00b77\n kb \n\nwere found in all strains of serotypes 2 and 4. \n\nPlasmids of about 4\u00b73\u20134\u00b76 kb were found in about 86%\n \n\nof strains. Serotypes 1, 2 and 3 were \n\ncharacterized by plasmids of about 5\u00b76\u20135\u00b77 kb. The\n \n\n6\u00b74\u00b76\u20137 kb plasmid was found consistently \n\nin serotypes 1, 2, 3, 5, 8, 12 and 13 which were resistant to SSu or had\n an \n\nSSu resistance \n\ncomponent in their phenotypes. Large plasmids (155\u2013186 kb) were found\n \n\nin most <jats:italic>S. boydii<\/jats:italic> strains.<\/jats:p><jats:p>Conjugative drug resistance plasmids, most often coding for three or\n \n\nless drugs, were found \n\nin about 26% of drug resistant strains. R-factors, coding for AT resistance\n \n\n(in types 2 and 8), \n\nand ASSuT resistance (in type 4), were compatible with all reference plasmids\n \n\ntested. Plasmids \n\nbelonging to incompatibility groups X and N were found in serotypes 5 and\n \n\n10, respectively.<\/jats:p>","DOI":"10.1017\/s0950268897008182","type":"journal-article","created":{"date-parts":[[2002,7,27]],"date-time":"2002-07-27T13:23:42Z","timestamp":1027776222000},"page":"293-298","source":"Crossref","is-referenced-by-count":1,"title":["Plasmid profiles of drug resistant <i>Shigella boydii<\/i> types\n \n\n1\u20135, 8, 10, 12\u201314 from Ethiopia (1974\u201385)"],"prefix":"10.1017","volume":"119","author":[{"given":"A.","family":"GEBRE-YOHANNES","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"B. S.","family":"DRASAR","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"56","published-online":{"date-parts":[[1997,12,1]]},"container-title":["Epidemiology and Infection"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.cambridge.org\/core\/services\/aop-cambridge-core\/content\/view\/S0950268897008182","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2019,5,11]],"date-time":"2019-05-11T19:45:52Z","timestamp":1557603952000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.cambridge.org\/core\/product\/identifier\/S0950268897008182\/type\/journal_article"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1997,12]]},"references-count":0,"journal-issue":{"issue":"3","published-print":{"date-parts":[[1997,12]]}},"alternative-id":["S0950268897008182"],"URL":"https:\/\/doi.org\/10.1017\/s0950268897008182","relation":{},"ISSN":["0950-2688","1469-4409"],"issn-type":[{"value":"0950-2688","type":"print"},{"value":"1469-4409","type":"electronic"}],"subject":[],"published":{"date-parts":[[1997,12]]}}}