| SYMPTOMS | FLU | COLD |
| fever | high temperature with sudden onset that lasts 3-4 days | seldom |
| Headache | often severe | Seldom |
| Body aches & pain | Usually, often quite severe | Sometimes |
| Fatigue | Extreme; can last up to 2 to 3 weeks | Mild |
| Bed-ridden | Almost always | Seldom |
| Runny, stuffy nose | Sometimes | Frequently |
| Sneezing | Sometimes | Frequently |
| Sore Throat | Sometimes | Frequently |
| Chest discomfort, coughing | Extreme; can become severe | Mild to moderate hacking cough |
| Complications | Bronchitis; pneumonia; can cause death | Sinus congestion or ear ache |