Source:http://linkedlifedata.com/resource/pubmed/id/15964774
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
2006-8-7
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pubmed:abstractText |
The dynamics of bovine respiratory syncytial virus (BRSV), bovine parainfluenza virus 3 (PIV-3), bovine corona virus (BCoV) and bovine viral diarrhoea virus (BVDV) infections were studied in 118 dairy herds in south western Sweden. By using serology on paired samples from three approximately 7 vs. approximately 15-month-old calves per herd, the propagation of infections was investigated over about a 1-year period. The results implied that at least 74% of calves had experienced one or more of the monitored infections at the age of approximately 7 months (Sample 1, Spring); 30%, 48%, 34% and 8% were seropositive to BRSV, PIV-3, BCoV and BVDV, respectively. Seroconversions to BRSV, PIV-3, BCoV and BVDV occurred in 26%, 38%, 50% and 3% of seronegative animals and 63% had antibodies against two or more infections at approximately 15 months (Sample 2). In total, 90-97% of animals that were seropositive in Sample 1 remained positive in Sample 2. A significant association was found between BVDV and BCoV (P = 0.01). Moreover, a significantly higher proportion of herds in which no calves had a recorded history of respiratory disease (n = 15) were classified as negative to all four infections monitored when compared to herds in which disease was observed (P = 0.0002). This study showed a high infection burden in young animals and effective spread of BRSV, PIV-3 and BCoV in one area of Sweden. BVDV infections were restricted to a few herds, reflecting the effect of a voluntary control program against BVDV in Sweden.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:status |
MEDLINE
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pubmed:month |
Sep
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pubmed:issn |
1090-0233
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
172
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
320-8
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:15964774-Animal Husbandry,
pubmed-meshheading:15964774-Animals,
pubmed-meshheading:15964774-Cattle,
pubmed-meshheading:15964774-Cattle Diseases,
pubmed-meshheading:15964774-Female,
pubmed-meshheading:15964774-RNA Virus Infections,
pubmed-meshheading:15964774-RNA Viruses,
pubmed-meshheading:15964774-Respiratory Tract Infections,
pubmed-meshheading:15964774-Seroepidemiologic Studies,
pubmed-meshheading:15964774-Sweden
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pubmed:year |
2006
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pubmed:articleTitle |
Dynamics of virus infections involved in the bovine respiratory disease complex in Swedish dairy herds.
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pubmed:affiliation |
Swedish University of Agricultural Sciences, Department of Clinical Sciences, Division of Ruminant Medicine and Veterinary Epidemiology, P.O. Box 7019, SE-75007 Uppsala, Sweden. sara.hagglund@kv.slu.se
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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