China - Lishui01 PF11 Carries Human-Fit Seasonal Marker at 324

A/Lishui/01/2009 from July 2009 appears to be the first Chinese PF11 sample to carry the robust signal of 324I on HA, a human-fit polymorphism carried on Seasonal H1N1 2008 and 2009 backgrounds as well as 1918 specimens. 

The Lishui HA also shows the rare PF11 226R.  The recent ZhejiangDTID-ZJU01, Ekaterinburg01 and Finland553 carry this polymorphism that profiled early within ΣPF11 in one Texas and two Mexico samples.

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