what are clades in influenza typing? I find the terms clades, subclades often but I want to know how to define, how many have they found so far.

Clade I, subclade 2a. etc. are often in those phylogenetic publications

2 Replies
  • Nandhini Bhashini

    Thank you Siripaporn Phuygun. I got that 2009 article and the WHO link , Find it very useful. So still there are only 7 clades identified?

    Feb 6, 2012
  • Siripaporn Phuygun

    you can see in this paper "The early diversification of influenza A/H1N1pdm"

    Feb 6, 2012
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