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  • The prevalence and risk factors for Coxiella burnetii on commercial dairy goat farms in Australia

    Author(s)
    Hou, Kangwei
    Firestone, Simon
    Wiethoelter, Anke
    Stenos, John
    Lignereux, Louis
    Clark, Nicolas
    Aleri, Joshua
    Magalhaes, Ricardo
    Stevenson, Mark
    Griffith University Author(s)
    Stenos, John
    Year published
    2021
    Metadata
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    Abstract
    Background: Despite the potentially important role that intensively managed dairy goats play in the spread of Q fever, the prevalence of Coxiella burnetii among dairy goat herds in Australia is largely unknown. The aim of this cross-sectional study was to estimate the prevalence of coxiellosis-positive dairy goat herds in Australia and to identify risk factors associated with coxiellosis positivity. Methods: Owners or managers of commercial dairy goat herds were contacted and asked to complete a questionnaire about risk factors for coxiellosis and to provide a bulk tank milk (BTM) sample. BTM samples were tested using ...
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    Background: Despite the potentially important role that intensively managed dairy goats play in the spread of Q fever, the prevalence of Coxiella burnetii among dairy goat herds in Australia is largely unknown. The aim of this cross-sectional study was to estimate the prevalence of coxiellosis-positive dairy goat herds in Australia and to identify risk factors associated with coxiellosis positivity. Methods: Owners or managers of commercial dairy goat herds were contacted and asked to complete a questionnaire about risk factors for coxiellosis and to provide a bulk tank milk (BTM) sample. BTM samples were tested using an enzyme-linked immunosorbent assay (ELISA) and real-time quantitative polymerase chain reaction (RT-PCR) targeting the Com1 and IS1111 sections of the C. burnetii genome. Questionnaire responses from coxiellosis positive and coxiellosis negative herds were compared using frequency cross-tabulations and multivariable logistic regression. Results: Herd managers from 49 of the 61 commercial dairy goat herds in Australia took part in the study. Of this group, three BTM samples were found to be both ELISA and RT-PCR positive. Two BTM samples were ELISA positive but RT-PCR negative. There were 10 (95% CI 4.4 to 22) C. burnetii positive herds per 100 herds at risk. Conclusions: The prevalence of coxiellosis among commercial dairy goat farms in Australia is relatively low.
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    Conference Title
    International Journal of Epidemiology
    Volume
    50
    Issue
    Supplement_1
    DOI
    https://doi.org/10.1093/ije/dyab168.289
    Subject
    Agricultural, veterinary and food sciences
    Veterinary bacteriology
    Science & Technology
    Life Sciences & Biomedicine
    Public, Environmental & Occupational Health
    Publication URI
    http://hdl.handle.net/10072/409422
    Collection
    • Conference outputs

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