{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,26]],"date-time":"2025-10-26T15:41:50Z","timestamp":1761493310386,"version":"build-2065373602"},"reference-count":21,"publisher":"Wiley","issue":"20","license":[{"start":{"date-parts":[[1996,5,18]],"date-time":"1996-05-18T00:00:00Z","timestamp":832377600000},"content-version":"vor","delay-in-days":17,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"name":"Scottish Office Agriculture and Fisheries Department"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Veterinary Record"],"published-print":{"date-parts":[[1996,5]]},"abstract":"<jats:p>\n                    Two days after being imported into the United Kingdom one of a group of 30 pregnant dairy heifers showed clinical signs of bovine viral diarrhoea virus (BVDV) infection and subsequently died. Before it died the heifer was BVDV antigen\u2010positive and antibody\u2010negative. The gross post mortem findings were suggestive of mucosal disease but in addition to noncytopathic BVD virus,\n                    <jats:italic>Salmonella typhimurium<\/jats:italic>\n                    DT104 was cultured from tissues and gut contents. The other heifers were screened for\n                    <jats:italic>S typhimurium<\/jats:italic>\n                    by culturing faeces, and serology showed that 13 (45 per cent) of the group seroconverted to BVDV in the three weeks between samplings and the remainder were seropositive, indicating previous exposure. During this period four heifers showed clinical signs of acute BVDV infection but recovered uneventfully. Four animals (14 per cent) were positive for\n                    <jats:italic>S typhimurium<\/jats:italic>\n                    DT104 on faecal culture, and three of these excretors concurrently seroconverted to BVDV. Of the 29 heifers remaining in the group, one aborted in late gestation, 26 bore live calves and two delivered stillborn calves. Pre\u2010colostral blood samples from the calves showed that their dams' pre\u2010existing antibody titres correlated well with in utero fetal protection. In non\u2010immune dams, exposure to BVDV between 69 and 120 days of gestation led to the birth of live persistently viraemic calves. Infection between 120 and 140 days of gestation led to the birth of live calves with evidence of congenital damage to the central nervous system, and infection later than 140 days of gestation led to the birth of live, normal calves with high pre\u2010colostral antibody titres to BVDV. One calf which sucked colostrum was antibody and virus antigen\u2010positive when sampled at 12 hours old but regular blood sampling failed to detect viraemia again until the calf was seven weeks old when it became persistently viraemic.\n                  <\/jats:p>","DOI":"10.1136\/vr.138.20.485","type":"journal-article","created":{"date-parts":[[2010,10,4]],"date-time":"2010-10-04T22:39:48Z","timestamp":1286231988000},"page":"485-489","source":"Crossref","is-referenced-by-count":10,"title":["Concurrent bovine viral diarrhoea virus and\n                    <i>Salmonella typhimurium<\/i>\n                    DT104 infection in a group of pregnant dairy heifers"],"prefix":"10.1002","volume":"138","author":[{"given":"C. D.","family":"Penny","sequence":"first","affiliation":[{"name":"The Large Animal Practice, Royal (Dick) School of Veterinary Studies Department of Veterinary Clinical Studies Veterinary Field Station, Easter Bush, Roslin Midlothian EH25 9RG"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"J. C.","family":"Low","sequence":"additional","affiliation":[{"name":"Scottish Agricultural College's Veterinary Services (Edinburgh) Bush Estate, Penicuik Midlothian EH26 OQE"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"P. F.","family":"Nettleton","sequence":"additional","affiliation":[{"name":"Moredun Research Institute 408 Gilmerton Road Edinburgh EH17 7JH"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"P. R.","family":"Scott","sequence":"additional","affiliation":[{"name":"The Large Animal Practice, Royal (Dick) School of Veterinary Studies Department of Veterinary Clinical Studies Veterinary Field Station, Easter Bush, Roslin Midlothian EH25 9RG"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"N. D.","family":"Sargison","sequence":"additional","affiliation":[{"name":"The Large Animal Practice, Royal (Dick) School of Veterinary Studies Department of Veterinary Clinical Studies Veterinary Field Station, Easter Bush, Roslin Midlothian EH25 9RG"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"W. D.","family":"Strachan","sequence":"additional","affiliation":[{"name":"The Large Animal Practice, Royal (Dick) School of Veterinary Studies Department of Veterinary Clinical Studies Veterinary Field Station, Easter Bush, Roslin Midlothian EH25 9RG"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"P. C.","family":"Honeyman","sequence":"additional","affiliation":[{"name":"The Scottish Office, Agriculture and Fisheries Department Cotgreen Road, Tweedbank Galashiels TD1 3SG"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[1996,5,18]]},"reference":[{"key":"e_1_2_5_2_1","first-page":"26","volume-title":"Salmonella in Animal and Poultry Production 1993","author":"ANON","year":"1994"},{"key":"e_1_2_5_3_1","doi-asserted-by":"publisher","DOI":"10.1136\/vr.133.22.549"},{"key":"e_1_2_5_4_1","doi-asserted-by":"publisher","DOI":"10.1136\/vr.117.18.459"},{"key":"e_1_2_5_5_1","doi-asserted-by":"publisher","DOI":"10.1017\/CBO9780511527104"},{"key":"e_1_2_5_6_1","doi-asserted-by":"publisher","DOI":"10.1136\/vr.134.18.468"},{"key":"e_1_2_5_7_1","doi-asserted-by":"publisher","DOI":"10.1136\/vr.106.23.473"},{"key":"e_1_2_5_8_1","doi-asserted-by":"publisher","DOI":"10.1136\/vr.117.10.240"},{"key":"e_1_2_5_9_1","doi-asserted-by":"publisher","DOI":"10.1016\/0378-1135(94)00081-7"},{"key":"e_1_2_5_10_1","first-page":"R136","volume":"4","author":"FONE D. 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