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Annual dengue cases with and without a vaccination program
| Prevaccine era | Vaccination Strategy C | Vaccination Strategy B | Vaccination Strategy A | |
|---|---|---|---|---|
| Symptomatic infection (%) | 0.91 | 0.73 | 0.51 | 0.18 |
| Primary infection (%) | 0.52 | 0.45 | 0.34 | 0.14 |
| Secondary infection (%) | 0.39 | 0.28 | 0.17 | 0.04 |
| No. of DHF cases per million | 187 | 140 | 83 | 22 |
DHF = dengue hemorrhagic fever.
