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Published Online: 17 October 2014

The Seroprevalence and Factors Associated with Ross River Virus Infection in Western Grey Kangaroos (Macropus fuliginosus) in Western Australia

Publication: Vector-Borne and Zoonotic Diseases
Volume 14, Issue Number 10


A serosurvey was undertaken in 15 locations in the midwest to southwest of Western Australia (WA) to investigate the seroprevalence of Ross River virus (RRV) neutralizing antibodies and factors associated with infection in western grey kangaroos (Macropus fuliginosus). The estimated seroprevalence in 2632 kangaroo samples, using a serum neutralization test, was 43.9% (95% CI 42.0, 45.8). Location was significantly associated with seroprevalence (p<0.001). There was a strong positive correlation between seroprevalence and the average log-transformed neutralizing antibody titer (r=0.98, p<0.001). The seroprevalence among adult kangaroos was significantly higher than in subadult kangaroos (p<0.05). No significant association was observed between seroprevalence and the sex of kangaroos (p>0.05). The results of this study indicate that kangaroos in WA are regularly infected with RRV and may be involved in the maintenance and transmission of RRV.

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Published In

cover image Vector-Borne and Zoonotic Diseases
Vector-Borne and Zoonotic Diseases
Volume 14Issue Number 10October 2014
Pages: 740 - 745
PubMed: 25325318


Published online: 17 October 2014
Published in print: October 2014


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    Abbey Potter
    School of Veterinary and Biomedical Sciences, Murdoch University, Murdoch, Western Australia, Australia.
    Cheryl A. Johansen
    School of Pathology and Laboratory Medicine, The University of Western Australia, Australia.
    Stan Fenwick
    School of Veterinary and Biomedical Sciences, Murdoch University, Murdoch, Western Australia, Australia.
    Simon A. Reid
    School of Population Health, The University of Queensland, Queensland, Australia.
    Michael D.A. Lindsay
    Environmental Health Hazards, Department of Health, Western Australia, Australia.


    Address correspondence to:Abbey PotterMosquito-Borne Disease ControlDepartment of HealthPO Box 8172Perth Business Centre, 6849Murdoch, WAAustralia
    E-mail: [email protected]

    Author Disclosure Statement

    No competing financial interests exist.

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