Signs and Symptoms of Influenza vs. Viral URI (Common Cold)
| SIGNS & SYMPTOMS | INFLUENZA | VIRAL URI (COMMON COLD) |
| Onset | Sudden | Gradual |
| Fever | Often high (101-104F or 38-40C); Lasts 3-5 days | Rare; If present, typically low-grade; |
| Aches and Pains | Usual, severe | Rare or mild |
| Weakness | Moderate to extreme; Lasting up to one month | Mild and brief |
| Bed Ridden | Frequently; may last up to 5-10 days | Rare |
| Runny Nose | Less likely | Common |
| Sneezing | Sometimes | Typical |
| Sore Throat | Sometimes | Common |
| Cough | Usual; Non-productive, “Dry”; Can become severe | Sometimes; Hacking; Mild to moderate |
| Headache | Prominent | Rare |
| Complications | Bronchitis; Pneumonia; Kidney Failure; Can be life threatening |
Sinus congestion; Ear infection |
| Prevention | Annual vaccination; Antiviral drugs (e.g. Rimantadine) | None |