Health and economic impacts of Lassa vaccination campaigns in West Africa by Smith, D, Turner, J, Fahr, P, Attfield, LA, Bessell, PR, Donnelly, C, Gibb, R, Jones, KE, Redding, DE, Asogun, D, Ayodeji, OO, Azuogu, BN, Fischer II, WA, Jan, K, Olayinka, AT, Wohl, DA, Torkelson, AA, Dinkel, KA, Nixon, EJ, Pouwels, K, Hollingsworth, D