Table 4. Sequence comparison of S gene of 13 PEDV strains and 3 vaccine strains.

PEDV strains	Percentage of nucleotide identity (%)
	CV777 (KT323979)	ZJ08	AJ1102 (JX188454)
GDsg01 China 2018	93.4	93.3	97.2
GDsg02 China 2018	93.6	93.4	97.8
GDsg03 China 2018	93.7	93.5	97.3
GDsg04 China 2018	93.7	93.4	97.3
GDsg05 China 2018	93.8	93.6	97.6
GDsg06 China 2018	93.8	93.6	97.5
GDsg07 China 2018	93.8	93.6	97.6
GDsg08 China 2018	93.8	93.6	97.6
GDsg09 China 2018	93.7	93.5	97.0
GDsg10 China 2018	93.7	93.4	97.4
GDsg11 China 2018	93.7	93.5	96.9
GDsg12 China 2018	93.6	93.4	96.9
GDsg13 China 2018	93.7	93.4	96.9