Distribution of bovine virus diarrhoea virus in tissues and white blood cells of cattle during acute infection

C.J.M. Bruschke, K. Weerdmeester, J.T. van Oirschot, P.A. van Rijn

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    Abstract

    This study is performed to gain knowledge about the quantitative distribution of bovine virus diarrhoea virus (BVDV) in tissues and white blood cells (WBC) at different intervals after acute infection. Ten specific pathogen-free calves were intranasally inoculated with 105 50% tissue culture infective dose of the non-cytopathic BVDV strain 4800. Twelve hours after inoculation tonsil biopsies were taken and WBC were collected daily for virus isolation and titration. Each day one calf was killed and virus isolations and titrations were performed from a range of tissues. The results indicate that BVDV first replicates in nasal mucosa and to high titers in the tonsil. The virus then appeared to spread to the regional lymph nodes and then disseminates throughout the body. The virus titers were highest in tonsil, thymus and ileum and were low in the WBC. Also after in vitro infection virus titers in WBC were very low, whereas, they were high in epithelial cells. Although the WBC might not be as important as other cells for replication of BVDV, they may play a role in the spread of the virus throughout the body.
    Original languageEnglish
    Pages (from-to)23-32
    JournalVeterinary Microbiology
    Volume64
    Issue number1
    DOIs
    Publication statusPublished - 1998

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