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. 2014 Aug;88(15):8579–8596. doi: 10.1128/JVI.00666-14

TABLE 3.

ICPI scores for parental rBC and rGBT and their envelope-associated protein gene chimeras

Virus ICPI scorea
rBC 1.61
rBC-GBT(M) 1.58
rBC-GBT(F) 1.88***
rBC-GBT(HN) 1.71**
rBC-GBT(F+HN) 1.80***
rBC-GBT(M+F+HN) 1.82***
rGBT 1.91
rGBT-BC(M) 1.85**
rGBT-BC(F) 1.62***
rGBT-BC(HN) 1.88
rGBT-BC(F+HN) 1.78***
rGBT-BC(M+F+HN) 1.75***
a

Pathotype definitions by ICPI: velogenic strains approach the maximum score of 2.00, whereas lentogenic strains give values close to 0. Asterisks indicate the statistical significance of the ICPI score of a chimeric virus compared to the parental virus of that group; P values were calculated based on a two-tailed, unpaired t test (95% confidence levels). ***, P = 0.0001 to 0.001, extremely significant; **, P = 0.001 to 0.01, very significant.