| Health Outcomes | 15% GRAa | 35% GRAa |
|---|---|---|
| Fatalities | 87,000 | 207,000 |
| Hospitalizations | 314,400 | 733,800 |
| Outpatients Visit | 18.1 million | 42.2 million |
| Self-care Ill | 21.3 million | 49.7 million |
a. GRA = gross rate of attack; the percentage of US population with a clinical case of influenza.