Symptom | 0 | 1 | 2 | 3 | 4 |
Overall severity of illness | Very mild | Mild | Moderate | Serious | Very serious |
Day cough | 1–2 times/day | 3–5 times/day | 6–10 times/day | 11–20 times/day | >20 times/day |
Night cough | 1–2 times/night | 3–5 times/night | 6–10 times/night | 11–20 times/night | >20 times/night |
Limit daily activity | None | Mild | Moderate | Severe | Very severe |
Subjective fever | None | Mild | Moderate | Severe shaking chills | Very severe |