| Symptoms | Days | ||||||
| 0 | 2 | 4 | 6 | 8 | 10 | 14 | |
| Fever (n = 92) | 92(100.0) | 52 (56.5) (p < 0.05) | 10 (10.8) | 5 (5.4) | 2 (2.1) | 0 (0.0) | 0 (0.0) |
| Body weakness (n = 90) | 90 (100.0) | 90 (100.0) | 80 (88.9) (p < 0.05) | 60 (66.7) | 52 (57.7) | 40 (44.4) | 0 (0.0) |
| Headache (n = 85) | 85 (100.0) | 70 (82.4) (p < 0.05) | 62 (72.9) | 20 (23.5) | 15 (17.6) | 2 (2.4) | 0 (0.0) |
| Malaise (n = 80) | 80 (100.0) | 70 (87.5) (p < 0.05) | 60 (75.0) | 42 (52.5) | 36 (45.0) | 24 (30.0) | 0 (0.0) |
| Loss of appetite (n = 80) | 80 (100.0) | 73 (91.3) | 60 (75.0) (p < 0.05) | 56 (70.0) | 40 (50.0) | 20 (25.0) | 0 (0.0) |
| Nausea (n = 72) | 72 (100.0) | 60 (83.3) (p < 0.05) | 52 (72.2) | 30 (41.7) | 15 (20.8) | 10 (13.8) | 0 (0.0) |
| Vomiting (n = 70) | 70 (100.0) | 36 (51.4) (p < 0.05) | 22 (31.4) | 14 (20.0) | 2 (2.9) | 0 (0.0) | 0 (0.0) |
| Abdominal pains (n = 50) | 50 (100.0) | 22 (44.0) (p < 0.05) | 10 (20.0) | 5 (10.0) | 1 (2.0) | 0 (0.0) | 0 (0.0) |