Especially if antivirals are limited, they should be supplied as early as possible. If their distribution is delayed, cases become so abundant that resources will quickly be exhausted without having much impact on the spread of the disease (Figures 2 and 3 ). This confirms that the amount of antivirals needed strongly depends on the number of infections that are present when the intervention is initiated [25] . If antiviral drugs are extremely limited, they should be used to preferably treat severe cases