{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,12]],"date-time":"2026-05-12T04:13:27Z","timestamp":1778559207784,"version":"3.51.4"},"reference-count":42,"publisher":"American Society for Microbiology","issue":"21","license":[{"start":{"date-parts":[[2012,11,1]],"date-time":"2012-11-01T00:00:00Z","timestamp":1351728000000},"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":[[2012,11]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n          <jats:p>\n            Dairy cows have been identified as common carriers of\n            <jats:named-content content-type=\"genus-species\">Campylobacter jejuni<\/jats:named-content>\n            , which causes many of the human gastroenteritis cases reported worldwide. To design on-farm management practices that control the human infection sourced from dairy cows, the first step is to acquire an understanding of the excretion patterns of the cow reservoir. We monitored the same 35 cows from two dairy farms for\n            <jats:named-content content-type=\"genus-species\">C. jejuni<\/jats:named-content>\n            excretion fortnightly for up to 12 months. The objective was to examine the concentration of\n            <jats:named-content content-type=\"genus-species\">C. jejuni<\/jats:named-content>\n            and assess the genetic relationship of the\n            <jats:named-content content-type=\"genus-species\">C. jejuni<\/jats:named-content>\n            populations excreted by individual cows. Significant differences (\n            <jats:italic>P<\/jats:italic>\n            &lt; 0.01) in\n            <jats:named-content content-type=\"genus-species\">C. jejuni<\/jats:named-content>\n            fecal concentration were observed among the 35 cows, with median concentrations that varied by up to 3.6 log\n            <jats:sub>10<\/jats:sub>\n            \u00b7 g\n            <jats:sup>\u22121<\/jats:sup>\n            feces. A total of 36 different genotypes were identified from the 514 positive samples by using enterobacterial repetitive intergenic consensus (ERIC)-PCR. Although 22 of these genotypes were excreted by more than one cow, the analysis of frequencies and distribution of the genotypes by model-based statistics revealed a high degree of individuality in the\n            <jats:named-content content-type=\"genus-species\">C. jejuni<\/jats:named-content>\n            population in each cow. The observed variation in the frequency of excretion of a genotype among cows and the analysis by multilocus sequence typing (MLST) of these genotypes suggest that excretion of\n            <jats:named-content content-type=\"genus-species\">C. jejuni<\/jats:named-content>\n            in high numbers is due to a successful adaptation of a particular genotype to a particular cow's gut environment, but that animal-related factors render some individual cows resistant to colonization by particular genotypes. The reasons for differences in\n            <jats:named-content content-type=\"genus-species\">C. jejuni<\/jats:named-content>\n            colonization of animals warrant further investigation.\n          <\/jats:p>","DOI":"10.1128\/aem.01783-12","type":"journal-article","created":{"date-parts":[[2012,8,18]],"date-time":"2012-08-18T02:33:12Z","timestamp":1345257192000},"page":"7564-7571","update-policy":"https:\/\/doi.org\/10.1128\/asmj-crossmark-policy-page","source":"Crossref","is-referenced-by-count":31,"title":["Differences in the Fecal Concentrations and Genetic Diversities of Campylobacter jejuni Populations among Individual Cows in Two Dairy Herds"],"prefix":"10.1128","volume":"78","author":[{"given":"Delphine","family":"Rapp","sequence":"first","affiliation":[{"name":"Food and Bio-based Products, AgResearch, Hamilton, New Zealand"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Colleen M.","family":"Ross","sequence":"additional","affiliation":[{"name":"Food and Bio-based Products, AgResearch, Hamilton, New Zealand"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Eve J.","family":"Pleydell","sequence":"additional","affiliation":[{"name":"mEpiLab, Institute for Veterinary, Animal and Biomedical Sciences, Massey University, Palmerston North, New Zealand"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Richard W.","family":"Muirhead","sequence":"additional","affiliation":[{"name":"Land and Environment, Invermay Agricultural Centre, Mosgiel, New Zealand"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"235","reference":[{"key":"e_1_3_2_2_2","first-page":"17","article-title":"Agricultural practices as a source of Campylobacter spp. in river water","volume":"4","author":"Bates P","year":"2005","unstructured":"BatesP PhillipsCA. 2005. Agricultural practices as a source of Campylobacter spp. in river water. J. Environ. Health Res. 4:17\u201323.","journal-title":"J. Environ. Health Res."},{"key":"e_1_3_2_3_2","unstructured":"BatzMB\nHoffmannS\nGlenn MorrisJJr. 2011. Ranking the risks: the 10 pathogen-food combinations with the greatest burden on public health. Emerging Pathogens Institute University of Florida Gainesville FL. http:\/\/www.epi.ufl.edu\/sites\/www.epi.ufl.edu\/files\/RankingTheRisksREPORT.pdf."},{"key":"e_1_3_2_4_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0378-1097(03)00845-0"},{"key":"e_1_3_2_5_2","doi-asserted-by":"publisher","DOI":"10.3201\/eid0910.020584"},{"key":"e_1_3_2_6_2","doi-asserted-by":"publisher","DOI":"10.1128\/AEM.69.12.7409-7413.2003"},{"key":"e_1_3_2_7_2","first-page":"258","article-title":"Dynamics of Campylobacter colonization of a natural host, Sturnus vulgaris (European Starling)","volume":"11","author":"Colles FM","year":"2011","unstructured":"CollesFM. 2011. 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