Rabbit haemorrhagic disease: are Australian rabbits (Oryctolagus cuniculus) evolving resistance to infection with Czech CAPM 351 RHDV?

Peter G. Elsworth, John Kovaliski, Brian Cooke

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    Abstract

    Rabbit haemorrhagic disease is a major tool for the management of introduced, wild rabbits in Australia. However, new evidence suggests that rabbits may be developing resistance to the disease. Rabbits sourced from wild populations in central and southeastern Australia, and domestic rabbits for comparison, were experimentally challenged with a low 60 ID50 oral dose of commercially available Czech CAPM 351 virus-the original strain released in Australia. Levels of resistance to infection were generally higher than for unselected domestic rabbits and also differed (0â¿¿73% infection rates) between wild populations. Resistance was lower in populations from cooler, wetter regions and also low in arid regions with the highest resistance seen within zones of moderate rainfall. These findings suggest the external influences of non-pathogenic calicivirus in cooler, wetter areas and poor recruitment in arid populations may influence the development rate of resistance in Australia.
    Original languageEnglish
    Pages (from-to)1972-1981
    Number of pages10
    JournalEpidemiology and Infection
    Volume140
    Issue number11
    DOIs
    Publication statusPublished - 2012

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    Rabbits
    Infection
    Population
    Disease Resistance
    Viruses

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    title = "Rabbit haemorrhagic disease: are Australian rabbits (Oryctolagus cuniculus) evolving resistance to infection with Czech CAPM 351 RHDV?",
    abstract = "Rabbit haemorrhagic disease is a major tool for the management of introduced, wild rabbits in Australia. However, new evidence suggests that rabbits may be developing resistance to the disease. Rabbits sourced from wild populations in central and southeastern Australia, and domestic rabbits for comparison, were experimentally challenged with a low 60 ID50 oral dose of commercially available Czech CAPM 351 virus-the original strain released in Australia. Levels of resistance to infection were generally higher than for unselected domestic rabbits and also differed (0{\^a}¿¿73{\%} infection rates) between wild populations. Resistance was lower in populations from cooler, wetter regions and also low in arid regions with the highest resistance seen within zones of moderate rainfall. These findings suggest the external influences of non-pathogenic calicivirus in cooler, wetter areas and poor recruitment in arid populations may influence the development rate of resistance in Australia.",
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    Rabbit haemorrhagic disease: are Australian rabbits (Oryctolagus cuniculus) evolving resistance to infection with Czech CAPM 351 RHDV? / Elsworth, Peter G.; Kovaliski, John; Cooke, Brian.

    In: Epidemiology and Infection, Vol. 140, No. 11, 2012, p. 1972-1981.

    Research output: Contribution to journalArticle

    TY - JOUR

    T1 - Rabbit haemorrhagic disease: are Australian rabbits (Oryctolagus cuniculus) evolving resistance to infection with Czech CAPM 351 RHDV?

    AU - Elsworth, Peter G.

    AU - Kovaliski, John

    AU - Cooke, Brian

    PY - 2012

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    N2 - Rabbit haemorrhagic disease is a major tool for the management of introduced, wild rabbits in Australia. However, new evidence suggests that rabbits may be developing resistance to the disease. Rabbits sourced from wild populations in central and southeastern Australia, and domestic rabbits for comparison, were experimentally challenged with a low 60 ID50 oral dose of commercially available Czech CAPM 351 virus-the original strain released in Australia. Levels of resistance to infection were generally higher than for unselected domestic rabbits and also differed (0â¿¿73% infection rates) between wild populations. Resistance was lower in populations from cooler, wetter regions and also low in arid regions with the highest resistance seen within zones of moderate rainfall. These findings suggest the external influences of non-pathogenic calicivirus in cooler, wetter areas and poor recruitment in arid populations may influence the development rate of resistance in Australia.

    AB - Rabbit haemorrhagic disease is a major tool for the management of introduced, wild rabbits in Australia. However, new evidence suggests that rabbits may be developing resistance to the disease. Rabbits sourced from wild populations in central and southeastern Australia, and domestic rabbits for comparison, were experimentally challenged with a low 60 ID50 oral dose of commercially available Czech CAPM 351 virus-the original strain released in Australia. Levels of resistance to infection were generally higher than for unselected domestic rabbits and also differed (0â¿¿73% infection rates) between wild populations. Resistance was lower in populations from cooler, wetter regions and also low in arid regions with the highest resistance seen within zones of moderate rainfall. These findings suggest the external influences of non-pathogenic calicivirus in cooler, wetter areas and poor recruitment in arid populations may influence the development rate of resistance in Australia.

    KW - Animal pathogens

    KW - caliciviruses

    KW - epidemiology

    KW - general virology

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    DO - 10.1017/S0950268811002743

    M3 - Article

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    JF - Journal of Hygiene

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