.Publisheru00e2 $ s take note Springer Attribute continues to be neutral with regard to jurisdictional claims in posted maps and institutional affiliations.This is a summary of: Smith, D. R. M. et al. Wellness as well as financial effects of Lassa vaccination campaigns in West Africa. Nat. Med. https://doi.org/10.1038/s41591-024-03232-y (2024 ).