| Clinical feature | Chikungunya | Dengue |
|---|---|---|
| Fever | Common | Common |
| Myalgia | Possible | Common |
| Polyarthritis | Common | Unlikely |
| Retro-orbital pain | Unlikely | Common |
| Rash | Possible | Common |
| Leukopenia or thrombocytopenia | Possible | Common |
| Bleeding | Unlikely | Possible |
| Chronic symptoms | Polyarthritis for months to years is common | Fatigue for many months is common |
Modified from Thiboutot et al.1