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Volume 20, Number 4—April 2014

Research

Active Surveillance for Avian Influenza Virus, Egypt, 2010–2012

Ghazi KayaliComments to Author , Ahmed Kandeil, Rabeh El-Shesheny, Ahmed S. Kayed, Mokhtar M. Gomaa, Asmaa M. Maatouq, Mahmoud M. Shehata, Yassmin Moatasim, Ola Bagato, Zhipeng Cai, Adam Rubrum, Mohamed A. Kutkat, Pamela P. McKenzie, Robert G. Webster, Richard J. Webby, and Mohamed A. Ali
Author affiliations: St. Jude Children's Research Hospital, Memphis, Tennessee, USA (G. Kayali, A. Rubrum, P.P. McKenzie, R.G. Webster, R.J. Webby); National Research Center, Giza, Egypt (A. Kandeil, R. El-Shesheny, A.S. Kayed, M.M. Gomaa, A.M. Maatouq, M.M. Shehata, Y. Moatasim, O. Bagato, M.A. Kutkat, M.A. Ali); Georgia State University, Atlanta, Georgia, USA (Z. Cai)

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Figure 5

Phylogenetic tree of the hemagglutinin gene of influenza A(H9N2) viruses from Egypt, 2010–2012. Scale bar indicates phylogenetic distance (1 base substitution/100 positions).

Figure 5. . . Phylogenetic tree of the hemagglutinin gene of influenza A(H9N2) viruses from Egypt, 2010–2012. Squares and red text indicate viruses that were isolated and sequenced as part of the study. Black text indicates sequences available on GenBank from previous years or other groups. Circles indicate co-infection with influenza virus subtypes H5N1 and H9N2. Scale bar indicates phylogenetic distance (1 base substitution/100 positions).

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