Table 3 Clinical features of confirmed A(H1N1)pdm09 infections
From: Rapid research response to the 2009 A(H1N1)pdm09 influenza pandemic (Revised)
Symptom | Severity | Duration | |||||
|---|---|---|---|---|---|---|---|
None | Mild | Moderate | Severe | Any | Duration (days) Mean | Duration (days) Median (Min, Max) | |
Elevated Temperature (Max) | 2 (7) * | 8 (27) | 8 (27) | 12 (40) | 28 | 3.2 | 3.0 (1, 8) |
Feverishness | 3 (10) | 6 (20) | 13 (43) | 8 (27) | 27 | 3.6 | 3.0 (1, 6) |
Fatigue (Malaise) | 4 (13) | 4 (13) | 12 (40) | 10 (33) | 26 | 5.4 | 4.0 (2, 16) |
Irritability | 19 (63) | 6 (20) | 3 (10) | 2 (7) | 11 | 4.6 | 4.0 (2, 15) |
Lethargy | 15 (50) | 3 (10) | 7 (23) | 5 (17) | 15 | 4.5 | 4.0 (2, 10) |
Myalgia/Body ache | 13 (43) | 6 (20) | 9 (30) | 2 (7) | 17 | 3.9 | 3.0 (2, 7) |
Headache | 6 (20) | 7 (23) | 11 (37) | 6 (20) | 24 | 3.1 | 3.0 (1, 6) |
Stuffy/Runny nose | 11 (37) | 11 (37) | 8 (27) | 0 | 19 | 8.4 | 6.0 (1, 23) |
Nausea | 18 (60) | 7 (23) | 5 (17) | 0 | 12 | 3.0 | 3.0 (1, 6) |
Vomiting | 24 (80) | 3 (10) | 2 (7) | 1 (3) | 6 | 1.8 | 1.5 (1, 4) |
Diarrhea | 23 (77) | 5 (17) | 1 (3) | 1 (3) | 7 | 3.3 | 3.0 (1, 10) |
Chills | 11 (37) | 6 (20) | 10 (33) | 3 (10) | 19 | 2.9 | 3.0 (1, 7) |
Sore throat | 14 (47) | 9 (30) | 6 (20) | 1 (3) | 16 | 3.5 | 3.0 (1, 7) |
Cough | 1 (3) | 11 (37) | 16 (53) | 2 (7) | 29 | 11.2 | 10.0 (4, 32) |
Shortness of breath | 25 (83) | 4 (13) | 1 (3) | 0 | 5 | 4.0 | 4.0 (2, 6) |
Wheezing | 25 (83) | 4 (13) | 1 (3) | 0 | 5 | 3.4 | 3.0 (1, 6) |
Earache | 29 (97) | 0 | 1 (3) | 0 | 1 | 7.0 | 7.0 (7, 7) |
Sinus fullness/Facial pain | 27 (90) | 2 (7) | 1 (3) | 0 | 3 | 7.0 | 5.0 (1, 15) |
Other symptoms | 11 (37) | 8 (27) | 6 (20) | 5 (17) | 19 | 4.4 | 3.0 (2, 21) |