Table 1 Illustrative vaccine scenarios
Scenario name | Mis-matched seasons? | Efficacy (matched/mis-matched) | Immunity duration | Coverage | Age-groups vaccinated |
|---|---|---|---|---|---|
No vaccine | - | - | - | - | - |
Current seasonal vaccines | Yes | 70%/40% | 6 months | 50% | All 0–5 |
Improved vaccines (minimal) | Yes | 70%/40% | 1 year | 50% | All 0–5 |
Improved vaccines (efficacy) | Yes | 90%/70% | 2 years | 50% | All individuals aged 0–5 in the first year of vaccination, followed by age 0, 2 and 4 in subsequent years |
Improved vaccines (breadth) | No | 70%/70% | 3 years | 50% | All individuals aged 0–5 in the first year of vaccination, followed by age 0, 2 and 4 in subsequent years |
Universal vaccines | No | 90%/90% | 5 years | 50% | All individuals aged 0–5 in the first year of vaccination, followed by age 0 and 5 |