Peer-reviewed veterinary case report
The role of neighboring infected cattle in bovine leukemia virus transmission risk.
- Journal:
- The Journal of veterinary medical science
- Year:
- 2015
- Authors:
- Kobayashi, Sota et al.
- Affiliation:
- National Institute of Animal Health · Japan
Abstract
A cohort study was conducted to evaluate the risk of bovine leukemia virus (BLV) transmission to uninfected cattle by adjacent infected cattle in 6 dairy farms. Animals were initially tested in 2010-2011 using a commercial ELISA kit. Uninfected cattle were repeatedly tested every 4 to 6 months until fall of 2012. The Cox proportional hazard model with frailty showed that uninfected cattle neighboring to infected cattle (n=53) had a significant higher risk of seroconversion than those without any infected neighbors (n=81) (hazard ratio: 12.4, P=0.001), implying that neighboring infected cattle were a significant risk factor for BLV transmission. This finding provides scientific support for animal health authorities and farmers to segregate infected cattle on farms to prevent spread of BLV.
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Search related cases →Original publication: https://pubmed.ncbi.nlm.nih.gov/25754652/