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Volume 19, Number 11—November 2013
Research

Migration and Persistence of Human Influenza A Viruses, Vietnam, 2001–2008

Mai Quynh Le, Ha Minh Lam, Vuong Duc Cuong, Tommy Tsan-Yuk Lam, Rebecca A Halpin, David E Wentworth, Nguyen Tran Hien, Le Thi Thanh, Hoang Vu Mai Phuong, Peter Horby, and Maciej F. BoniComments to Author 
Author affiliations: National Institute for Hygiene and Epidemiology, Hanoi, Vietnam (M.Q. Le, V.D. Cuong, N.T. Hien, L.T. Thanh, H.V.M. Phuong); Oxford University Clinical Research Unit, Ho Chi Minh City, Vietnam (H.M. Lam, M.F. Boni); University of Edinburgh, Edinburgh, Scotland, UK (H.M. Lam); University of Oxford, Oxford, UK (T.T.-Y. Lam, P. Horby, M.F. Boni); The J. Craig Venter Institute, Rockville, Maryland, USA (R.A. Halpin, D. E. Wentworth); Oxford University Clinical Research Unit, Hanoi (P. Horby)

Main Article

Figure 5

Maximum clade credibility tree for regional influenza (H3N2) hemagglutinin data, generated by BEAST version 1.6.2 (26) under a constant population model; these are the same sequences as shown on Figure 1, except 2 sequences from Vietnam were removed because of missing sampling dates (n = 785 sequences). Inset on the bottom right shows a magnification of the tree for the 2007–2008 Vietnam sequences, to highlight persistence during this time. The smaller inset above shows coalescent (coal.) times

Figure 5. . Maximum clade credibility tree for regional influenza (H3N2) hemagglutinin data, generated by BEAST version 1.6.2 (26) under a constant population model; these are the same sequences as shown on Figure 1, except 2 sequences from Vietnam were removed because of missing sampling dates (n = 785 sequences). Inset on the bottom right shows a magnification of the tree for the 2007–2008 Vietnam sequences, to highlight persistence during this time. The smaller inset above shows coalescent (coal.) times for the Vietnam sequences in the larger inset. The 2 x-axes on the insets coincide, and each black circle showing a coalescence time corresponds to the tip of a branch of Vietnam virus in the magnified-tree inset.

Main Article

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