Zika virus outbreak on Yap Island, Federated States of Micronesia - Duffy, M R; Chen, T H; Hancock, W T; Powers, A M; Kool, J L; Lanciotti, R S; Pretrick, M; Marfel, M; Holzbauer, S; Dubray, C; Guillaumot, L; Griggs, A; Bel, M; Lambert, A J; Laven, J; Kosoy, O; Panella, A; Biggerstaff, B J; Fischer, M; Hayes, E B (N Engl J Med, 2009)