{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T23:58:02Z","timestamp":1790812682563,"version":"4.1.0"},"reference-count":22,"publisher":"Springer Science and Business Media LLC","issue":"1","content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["BMC Vet Res"],"published-print":{"date-parts":[[2013,12]]},"abstract":"<jats:title>Abstract<\/jats:title>\n          <jats:sec>\n            <jats:title>Background<\/jats:title>\n            <jats:p>Little is currently known about <jats:italic>Brucella<\/jats:italic> evolution within the host during infection. The current study is the first to employ fine-scale genotyping on an isolate collection derived from a <jats:italic>Brucella canis<\/jats:italic> outbreak. Eight isolates of <jats:italic>B. canis<\/jats:italic>, cultured from different tissues of three dogs (female, stud dog, puppy of another female) from a single kennel over three months were genetically characterized with a 15-marker multi-locus, variable-number tandem repeat (VNTR) analysis (MLVA) to assess the genetic relatedness of isolates and potential rapid mutational changes.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Results<\/jats:title>\n            <jats:p>MLVA discriminated among the otherwise indistinguishable isolates from different animals and from isolates collected at different time points within each host, with different VNTR alleles being detected at multiple dates and tissue sites. We suspect that all isolates cultured from the female, puppy, and stud dogs originated from the same strain, with subsequent rapid <jats:italic>in vivo<\/jats:italic> mutations. However, high mutation rates and apparent in several of the loci prevented making definitive epidemiological relationships among isolates.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Conclusions<\/jats:title>\n            <jats:p>This investigation highlights the rapid <jats:italic>in vivo<\/jats:italic> genetic mutations of several VNTRs of <jats:italic>B. canis<\/jats:italic> over a short time period in the host and the emergence of alternate alleles. However, this work also suggests the challenges of using highly mutable VNTRs to infer epidemiological relationships of strains within a short duration outbreak.<\/jats:p>\n          <\/jats:sec>","DOI":"10.1186\/1746-6148-9-76","type":"journal-article","created":{"date-parts":[[2013,4,12]],"date-time":"2013-04-12T10:14:44Z","timestamp":1365761684000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":18,"title":["Within-host evolution of Brucella canis during a canine brucellosis outbreak in a kennel"],"prefix":"10.1186","volume":"9","author":[{"given":"Mikl\u00f3s","family":"Gyuranecz","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Brandy D","family":"Rannals","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christina A","family":"Allen","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Szil\u00e1rd","family":"J\u00e1nosi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Paul S","family":"Keim","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jeffrey T","family":"Foster","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2013,4,12]]},"reference":[{"issue":"3","key":"643_CR1","doi-asserted-by":"publisher","first-page":"575","DOI":"10.1016\/j.theriogenology.2006.04.011","volume":"66","author":"RB Hollett","year":"2006","unstructured":"Hollett RB: Canine brucellosis: Outbreaks and compliance. 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