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. 2009 Sep 27;364(1530):2739–2747. doi: 10.1098/rstb.2009.0088

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© 2009 The Royal Society

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Figure 1. — Distribution of synonymous (black lines) and non-synonymous (red lines) nucleotide substitutions in the HA gene of cDNA clones amplified from swabs taken from infected birds. cDNA clones prepared from swabs taken from chickens infected with (a) A/turkey/Turkey/1/2005 H5N1 and (b) A/turkey/England/50-92/91H5N1, which were analysed between nucleotides 29–1178 of RNA segment 4; and the HA gene from swabs of birds inoculated with A/ostrich/Italy/984/2000 H7N1; (c) chickens, (d) turkeys, and (e) ducks were analysed between nucleotides 22–1133 of RNA segment 4.