Arboviruses: many viruses, transmission via arthropods (mainly insects)
Arboviruses: clinically difficult to diagnose: atypical, flu-like, encephalitis or haemorrhagic
Yellow fever, Crimean-Congo haemorrhagic fever: haemorrhaging predominates
WEE, VEE, EEE, Japanese Encephalitis: encephalitis predominates
Dengue: mostly a flu-like syndrome, sometimes complicated by DHF/DSS
Ross River: severe arthritis predominates
