Mosquito-borne arboviruses are an important public health issue in Australi
a. The alphaviruses Ross River and Barmah Forest virus are widespread and a
ctive annually, and cause debilitating polyarthritis. The flaviviruses Murr
ay Valley encephalitis, Kunjin and Japanese encephalitis virus are restrict
ed in distribution and activity but may cause life-threatening illness, and
dengue viruses are active in some areas. (C) 2000 Editions scientifiques e
t medicales Elsevier SAS.