Absence of Ross River virus amongst Common brushtail possums (Trichosurus vulpecula) from metropolitan Sydney, Australia

Nichola J. Hill, Michelle L. Power, Elizabeth M. Deane

Research output: Contribution to journalArticleResearchpeer-review

Abstract

Ross River virus (RRV) is a mosquito-transmitted Alphavirus emerging in urban centres throughout Australia. The Common brushtail possum (Trichosurus vulpecula), a native marsupial that has successfully adapted to human settlement, has been implicated as a maintenance reservoir for RRV. In the present study, RRV exposure was assessed amongst 72 urban-adapted possums from Northern Sydney and ten possums from a woodland area, remote from urbanisation. Serological screening was performed using an enzyme-linked immunosorbent assay to detect RRV antibodies in possum sera. Findings indicated that both possum populations from urban and woodland habitats were negative for the presence of RRV antibodies. Lack of exposure to RRV highlights that the host status of possums is contingent upon factors other than their abundance and proximity to human settlement. In view of the potential for climate change to favour transmission of mosquito-borne disease in Australia, identification of wildlife populations entirely absent of RRV may prove useful for monitoring the predicted spread of the virus.

LanguageEnglish
Pages313-316
Number of pages4
JournalEuropean Journal of Wildlife Research
Volume55
Issue number3
DOIs
Publication statusPublished - Jun 2009

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Ross River virus
Trichosurus vulpecula
virus
river
human settlements
human settlement
mosquito
woodlands
antibody
woodland
mosquito-borne diseases
Alphavirus
antibodies
Metatheria
possums
marsupial
urbanization
wildlife
Culicidae
serum

Cite this

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title = "Absence of Ross River virus amongst Common brushtail possums (Trichosurus vulpecula) from metropolitan Sydney, Australia",
abstract = "Ross River virus (RRV) is a mosquito-transmitted Alphavirus emerging in urban centres throughout Australia. The Common brushtail possum (Trichosurus vulpecula), a native marsupial that has successfully adapted to human settlement, has been implicated as a maintenance reservoir for RRV. In the present study, RRV exposure was assessed amongst 72 urban-adapted possums from Northern Sydney and ten possums from a woodland area, remote from urbanisation. Serological screening was performed using an enzyme-linked immunosorbent assay to detect RRV antibodies in possum sera. Findings indicated that both possum populations from urban and woodland habitats were negative for the presence of RRV antibodies. Lack of exposure to RRV highlights that the host status of possums is contingent upon factors other than their abundance and proximity to human settlement. In view of the potential for climate change to favour transmission of mosquito-borne disease in Australia, identification of wildlife populations entirely absent of RRV may prove useful for monitoring the predicted spread of the virus.",
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Absence of Ross River virus amongst Common brushtail possums (Trichosurus vulpecula) from metropolitan Sydney, Australia. / Hill, Nichola J.; Power, Michelle L.; Deane, Elizabeth M.

In: European Journal of Wildlife Research, Vol. 55, No. 3, 06.2009, p. 313-316.

Research output: Contribution to journalArticleResearchpeer-review

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