Ross River Virus Infection, Ross River Fever; Epidemic Polyarthritis

Viral Diseases

Animals Involved

Marsupials, including wallaby, brushtail possum, might be natural hosts; dusky rat also proposed; people, horses, ruminants, pigs, rabbits, other mammals (minor hosts) may also be a source of virus during epidemics

Known Distributions

Australia, South Pacific Islands

Probable Means of Spreading

Mosquito bites (especially Culex annulirostris and Aedes spp)

Clinical Manifestations in People

Mild fever, arthralgia ± arthritis, headache, rash; small joints most affected but large joints can also be involved; arthralgia, myalgia, lethargy may persist for months

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