“…Additional notable use cases include the roll-out of new interventions for endemic pathogens where, for instance, scenario projections can help anticipate the benefits and dynamic changes associated with new vaccines or improved drugs (Flasche et al, 2016;Pitzer et al, 2009;Eaton et al, 2012;Houben et al, 2016). In some cases, the scenario projections are produced from a single model (e.g., Meltzer et al, 2014), while in others, the scenario projections come from multiple models (Flasche et al, 2016;Houben et al, 2016), drawing on a growing literature documenting the value of multi-model efforts (Johansson et al, 2019;Shea et al, 2020Shea et al, , 2023Cramer et al, 2022;Prasad et al, 2023). Scenario design plays an important role in infectious disease projections over long time scales, not only to contrast different intervention schemes, but also to control for uncertainty in key parameters that may be magnified over time.…”