A simulation-based method to inform serosurvey designs for estimating the force of infection using existing blood samples by Vicco, A, McCormack, CP, Pedrique, B, Amuasi, JH, Afum-Adjei Awuah, A, Obirikorang, C, Struck, NS, Lorenz, E, May, J, Ribeiro, I, Neelika Malavige, G, Donnelly, CA, Dorigatti, I