Transmission Studies Resume For Avian Flu - Fouchier, RAM; Garcia-Sastre, A; Kawaoka, Y; Barclay, WS; Bouvier, NM; Brown, IH; Capua, I; Chen, H; Compans, RW; Couch, RB; Cox, NJ; Doherty, PC; et al. (SCIENCE, 2013)