Table 3.
Variable | Developed countries | Developing countries |
---|---|---|
Seasonality | Winter | Year-round |
Age <1 year, % | 40 | 80 |
Serotypes | 5 Common | Many uncommon serotypes and reassortants |
Mixed infection | Rare | Common |
Case fatality | Low | High |
Variable | Developed countries | Developing countries |
---|---|---|
Seasonality | Winter | Year-round |
Age <1 year, % | 40 | 80 |
Serotypes | 5 Common | Many uncommon serotypes and reassortants |
Mixed infection | Rare | Common |
Case fatality | Low | High |