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. 2016 Jul 20;29(8):309–315. doi: 10.1093/protein/gzw017

Table II.

The pepitope distances between the vaccine strain A/Texas/50/2012(egg) and selected novel strains

Strain name Collection date pi for each epitope i
Predicted effectiveness
A B C D E p epitope
A/Texas/50/2012(cell) 2012-04-15 0 0.0476 0 0.0244 0 0.0476 35%
A/Washington/18/2013 2013-11-29 0.1053 0.1905 0 0.0244 0 0.1905 0%
A/California/02/2014 2014-01-16 0.1579 0.1905 0 0.0244 0 0.1905 0%
A/Nebraska/04/2014 2014-03-11 0.1053 0.2381 0.0370 0.0244 0.0455 0.2381 0%

The pepitope distances between the vaccine strain A/Texas/50/2012(egg) and reported novel strains (World Health Organization, 2014b) in 2013 and 2014. The pi values for each epitope (i= A–E), the number of substitutions in epitope i divided by the number of amino acids in epitope i, are also shown. The value of pepitope is the largest of the pi values, and the corresponding epitope i is dominant. Zero values indicate no substitutions in that epitope.