Ross River fever
ROSS River fever virus and Barmah Forest virus are almost identical in their onset. Both mosquitoborne viruses cause polyarthralgia, characterised by sudden onset of headache, fever, rashes and joint pain. Some patients develop significant pain, fluid and swelling in affected joints for up to two months, lingering as mild arthritic symptoms for up to a year.
In Townsville, 77 cases of Ross River fever were reported to the city council between June 2010 and February 2011, compared with 129 for the same period in ‘ 09-‘ 10.