IC50s in the enzyme inhibition assay of clade 2.1 Indonesian viruses identified as outliers and associated sequence changes.

aSamples were all assayed with a 30 min preincubation with inhibitor, and then MUNANA was added and reactions were stopped after 60 min and read. Values are the mean of duplicate reactions.bFold difference was compared to the means of the six batch 1 assays for the sensitive reference clade 1.1 A/chicken/Vietnam/08/2004.cSample not inhibited by either drug; co-infected with Newcastle disease virus.