Severity assessment
| Mild to moderate | Severe | |
| Infants | Temperature <38.5°C | Temperature >38.5°C |
| Respiratory rate <50 breaths/min | Respiratory rate >70 breaths/min | |
| Mild recession | Moderate to severe recession | |
| Taking full feeds | Nasal flaring | |
| Cyanosis | ||
| Intermittent apnoea | ||
| Grunting respiration | ||
| Not feeding | ||
| Tachycardia* | ||
| Capillary refill time ≥2 s | ||
| Older children | Temperature <38.5°C | Temperature >38.5°C |
| Respiratory rate <50 breaths/min | Respiratory rate >50 breaths/min | |
| Mild breathlessness | Severe difficulty in breathing | |
| No vomiting | Nasal flaring | |
| Cyanosis | ||
| Grunting respiration | ||
| Signs of dehydration | ||
| Tachycardia* | ||
| Capillary refill time ≥2 s |
* Values to define tachycardia vary with age and with temperature.67[II]