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. Author manuscript; available in PMC: 2024 Oct 24.
Published in final edited form as: Vaccine. 2024 Apr 6;42(Suppl 4):125861. doi: 10.1016/j.vaccine.2024.04.007

Table 2.

Description of scenarios modelling different vaccine deployment strategies.

Scenario Distribution of annual coverage Example: Annual cumulative coverage is 20 % of target population
March* April May June
Scenario 1 Equal distribution across all four months of the vaccine campaign (March-June) 5 % 5 % 5 % 5 %
Scenario 2 50 % of the annual cumulative coverage is achieved in March, 25 % in April, 25 % in May 10 % 5 % 5 % 0 %
Scenario 3 Equal distribution in March and April 10 % 10 % 0 % 0 %
Scenario 4 75 % of the annual cumulative coverage is achieved in March, 25 % April 15 % 5 % 0 % 0 %
*

The vaccine campaign begins in March, two months prior to the start of a typical Southern Hemisphere influenza season and when seasonal vaccines are typically made available.