Associations between exposure to viruses and bovine respiratory disease in Australian feedlot cattle
文摘

Seroepidemiology of BVDV-1, BoHV-1, BRSV and BPIV-3 and risk of BRD was investigated.

For each virus, being seronegative at entry increased risk of BRD in feedlot cattle.

Animals seronegative for more than one virus were at progressively increased risk.

For each virus seroincrease resulted in increased risk of BRD in feedlot cattle.

Seroincrease for more than one virus further increased risk of BRD.

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