Table 1. Similarity analysis of H5N6 virus sequences from the two cases in Guangxi zhuang autonomous region, China, 2021.

Virus	Segment	Length (bp)	Strain with the highest similarity	GISAD ID	Similarity (%)
GX01	PB2	2348	A/goose/Fujian/3.15_FZHX0011-O/2018 (H9N2)	EPI1816470	92.21
	PB1	2341	A/Guangxi/31906/2018 (H5N6)	EPI1352803	100.00
	PA	2229	A/chicken/Miyazaki/2-4C/2017 (H5N6)	EPI1891595	96.55
	HA	1773	A/chicken/Anhui/8.28_YHZGS017-O/2018 (H5N6)	EPI1825343	97.68
	NP	1565	A/Guangxi/31906/2018 (A/H5N6)	EPI1352798	98.98
	NA	1431	A/Env/Guangdong/Qingyuan/C18285099/2018 (H5N6)	EPI1366600	98.25
	MP	1027	A/chicken/Shanxi/06.28_TGRL001-O/2018 (H9N2)	EPI1833450	98.64
	NS	875	A/Env/Guangdong/Dongguan/C172863577/2017 (H5N6)	EPI1366948	98.86
GX11151	PB2	2342	A/Env/Guangdong/zhanjiang/C17277335/2017 (H5N6)	EPI1366759	96.63
	PB1	2344	A/Env/Guangdong/zhanjiang/C18277136/2018 (H5N6)	EPI1366684	97.78
	PA	2233	A/chicken/Miyazaki/2-4C/2017 (H5N6)	EPI891595	97.08
	HA	1775	A/chicken/Omsk/0112/2020 (H5N8)	EPI1813345	99.44
	NP	1565	A/duck/Hunan/5.29_YYGK90P3-OC/2018 (H9N2)	EPI1835016	98.72
	NA	1433	A/Env/Guangdong/Qingyuan/C18285099/2018 (H5N6)	EPI1366600	97.77
	MP	1027	A/Sichuan/06681/2021 (A/H5N6)	EPI1883262	99.51
	NS	875	A/Env/Guangdong/Huizhou/C17280804/2017 (A/H5N6)	EPI1366935	98.86