Table 1.

IBV strains isolated from flocks in different provinces of South China.

IBV isolates	Provincea	Years of isolation	Major clinical signs	Spike glycoprotein cleavage recognition motifs	Accession number
CQ04-1	Chongqing	2004	Nephritis	RRFRR1	GQ265952
CQ04-2	Chongqing	2004	Nephritis	RRSKR3	GQ265953
DY04	Sichuan	2004	Nephritis	RRFRR1	GQ265950
NN04	Guangxi	2004	Nephritis	RRSRR4	GQ265951
DY05	Sichuan	2005	Nephritis	HRRRR2	GQ265928
GM05	Guangdong	2005	Nephritis	RRFRR1	GQ265931
LZ05	Guangdong	2005	Nephritis	RRFRR1	GQ265943
HN06-1	Hainan	2006	Nephritis	RRFRR1	GQ265938
HN06-2	Hainan	2006	Nephritis	RRFRR1	GQ265939
HY06	Guangdong	2006	Nephritis	RRSKR3	GQ265941
SS06-1	Guangdong	2006	Respiratory	RRSKR3	GQ265935
SS06-2	Guangdong	2006	Respiratory	RRFRR1	GQ265937
DY07	Sichuan	2007	Respiratory	HRRRR2	GQ265927
HY07	Guangdong	2007	Nephritis	RRSKR3	GQ265942
LZ07	Guangdon	2007	Respiratory	RRFRR1	GQ265944
NN07	Guangxi	2007	Nephritis	HRRRR2	GQ265946
SS07	Guangdong	2007	Respiratory	RRFRR1	GQ265936
TC07-1	Guangdong	2007	Nephritis	HRRRR2	GQ265947
TC07-2	Guangdong	2007	Respiratory	HRRKR5	GQ265948
ZX07	Guangdong	2007	Nephritis	HRRRR2	GQ265949
FS08-1	Guangdong	2008	Respiratory	RRFRR1	GQ265929
FS08-2	Guangdong	2008	Respiratory	RRFRR1	GQ265930
GL08-1	Guangxi	2008	Respiratory	HRRRR2	GQ265932
GL08-2	Guangxi	2008	Respiratory	HRRRR2	GQ265933
HB08	Hubei	2008	Respiratory	HRRRR2	GQ265934
HN08	Hainan	2008	Nephritis	RRFRR1	GQ265940
XX08	Guangdong	2008	Nephritis	RRFRR1	GQ265945

^aProvince where the viruses were isolated.

¹RRFRR: Arg-Arg-Phe-Arg-Arg (13).

²HRRRR: His-Arg-Arg-Arg-Arg (8).

³RRSKR: Arg-Arg-Ser-Lye-Arg (4).

⁴RRSRR: Arg-Arg-Ser-Arg-Arg (1).

⁵HRRKR: His-Arg-Arg-Lys-Arg (1).