24897 — the veteran has established the causal connection between the Ross River virus infection and VEA service for the clinical onset of chronic fatigue syndrome.

24898 — the veteran has established the causal connection between the Ross River virus infection and operational service for the clinical onset of chronic fatigue syndrome.

or

24899 — the veteran has established the causal connection between the Ross River virus infection and eligible service for the clinical onset of chronic fatigue syndrome.

Clinical onset and operational service [24898]