Table 3. Phylogenetic tests of positive selection in the H gene.

Model	Positive selection sites	Significant Level
		p-value a
SLAC	aa246	0.0110
FEL	aa246	0.0035
	aa419	0.0367
	aa574	0.0449
IFEL	aa246	0.0077
	aa419	0.0497
	aa574	0.0147
		BF b
REL	aa176	296.2030
	aa246	1467.6100

^a. Codons with P values <0.05.

^b. Codons with Bayes factor >50.