Author: Klem, T. B.; Tollersrud, T.; Østerås, O.; Stokstad, M.
Title: Association between the level of antibodies in bulk tank milk and bovine respiratory syncytial virus exposure in the herd Document date: 2014_7_12
ID: 0niak4oy_30
Snippet: The two herds followed over four years after an infection generally had high levels of antibodies in BTM throughout this period, which again shows that the BTM will remain positive for at least four years after an infection, without reinfections. There was a high variation in level of antibodies in BTM during the whole study period. This also supports the previous finding that a markedly increased antibody level in paired BTM can indicate, but is.....
Document: The two herds followed over four years after an infection generally had high levels of antibodies in BTM throughout this period, which again shows that the BTM will remain positive for at least four years after an infection, without reinfections. There was a high variation in level of antibodies in BTM during the whole study period. This also supports the previous finding that a markedly increased antibody level in paired BTM can indicate, but is not necessarily the result of, a recent infection. The antibody level in the BTM samples decreased slightly at the end of the study period. Nevertheless, the continuous large fluctuations only weeks apart indicates that guidelines based on antibody level in BTM might not be suitable for BRSV.
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