Differences in the Epidemiology of Human Cases of Avian Influenza A(H7N9) and A(H5N1) Viruses Infection.

Author(s): Qin Y, Horby PW, Tsang TK, Chen E, Gao L, Ou J, Nguyen TH, Duong TN, Gasimov V, Feng L, Wu P, Jiang H, Ren X, Peng Z, Li S, Li M, Zheng J, Liu S, Hu S, Hong R, Farrar JJ, Leung GM, Gao GF, Cowling BJ, Yu HJournal: Clin Infect DisPMID: 25940354 August 2015
The pandemic potential of avian influenza viruses A(H5N1) and A(H7N9) remains an unresolved but critically important question.