Table 1.
IBV strains isolated from different provinces in southern China
| IBV isolates | Provincea | Chicken type | Clinical signs | Age (days) | Length (nt/aa)b | Cleavage recognition motifsc | Accession number |
|---|---|---|---|---|---|---|---|
| CK/CH/GD/LZ11 | Guangdong | Broiler | Nephritis | 12 | 1620/540 | HRRRR | KJ524580 |
| CK/CH/GD/HY11 | Guangdong | Broiler | Nephritis | 36 | 1617/539 | RRFRR | KJ524581 |
| CK/CH/GX/NN11-1 | Guangxi | Broiler | Nephritis | 14 | 1620/540 | HRRRR | KJ524582 |
| CK/CH/GX/NN11-2 | Guangxi | Broiler | Respiratory | 60 | 1620/540 | HRRRR | KJ524583 |
| CK/CH/GX/GL11-1 | Guangxi | Broiler | Nephritis | 9 | 1614/538 | RRFRR | KJ524584 |
| CK/CH/GX/GL11-2 | Guangxi | Broiler | Nephritis | 17 | 1626/542 | RRLRR | KJ524585 |
| CK/CH/FJ/PT11 | Fujian | Broiler | Nephritis | 45 | 1620/540 | HRRRR | KJ524586 |
| CK/CH/JS/YC11-1 | Jiangsu | Broiler | Nephritis | 15 | 1620/540 | HRRRR | KJ524587 |
| CK/CH/JS/YC11-2 | Jiangsu | Broiler | Nephritis | 50 | 1620/540 | HRRRR | KJ524588 |
| CK/CH/HuB/HC11 | Hubei | Broiler | Respiratory | 15 | 1620/540 | HRRRR | KJ524589 |
| CK/CH/GD/YN11 | Guangdong | Broiler | Nephritis | 118 | 1620/540 | HRRRR | KJ524590 |
| CK/CH/GD/LD11 | Guangdong | Layer hen | Egg drop | 240 | 1635/545 | HRRKR | KJ524591 |
| CK/CH/GD/CG11 | Guangdong | Broiler | Nephritis | 21 | 1620/540 | RRFRR | KJ524592 |
| CK/CH/SC/MS11-1 | Sichuan | Broiler | Nephritis | 25 | 1620/540 | HRRRR | KJ524593 |
| CK/CH/SC/MS11-2 | Sichuan | Broiler | Respiratory | 17 | 1620/540 | RRFRR | KJ524594 |
| CK/CH/SC/ZJ11 | Sichuan | Broiler | Nephritis | 13 | 1626/542 | RRFRR | KJ524595 |
| CK/CH/HuB/XN11 | Hubei | Broiler | Respiratory | 66 | 1620/540 | RRLRR | KJ524637 |
| CK/CH/GX/LC11-1 | Guangxi | Broiler | Nephritis | 18 | 1617/539 | HRRRR | KJ524596 |
| CK/CH/YN/SL11-1 | Yunnan | Broiler | Nephritis | 26 | 1620/540 | HRRRR | KJ524617 |
| CK/CH/YN/SL11-2 | Yunnan | Broiler | Nephritis | 23 | 1620/540 | RRLRR | KJ524618 |
| CK/CH/GX/LC11-2 | Guangxi | Broiler | Respiratory | 19 | 1620/540 | RRFRR | KJ524597 |
| CK/CH/GX/LC11-3 | Guangxi | Broiler | Nephritis | 47 | 1629/543 | RRFRR | KJ524598 |
| CK/CH/GX/NN11-3 | Guangxi | Broiler | Nephritis | 15 | 1617/539 | HRRRR | KJ524599 |
| CK/CH/SC/MS11-3 | Sichuan | Broiler | Nephritis | 10 | 1620/540 | HRRRR | KJ524600 |
| CK/CH/SC/MS11-4 | Sichuan | Broiler | Nephritis | 17 | 1635/545 | HRRKR | KJ524601 |
| CK/CH/GX/NN11-4 | Guangxi | Broiler | Nephritis | 39 | 1620/540 | HRRRR | KJ524602 |
| CK/CH/AH/WH11 | Anhui | Broiler | Nephritis | 23 | 1620/540 | RRFRR | KJ524603 |
| CK/CH/ZJ/QZ11 | Zhejiang | Broiler | Respiratory | 19 | 1617/539 | RRFRR | KJ524604 |
| CK/CH/SC/DY11 | Sichuan | Broiler | Respiratory | 38 | 1620/540 | RRLRR | KJ524605 |
| CK/CH/SC/MS11-5 | Sichuan | Layer hen | Egg drop | 259 | 1620/540 | RRFRR | KJ524606 |
| CK/CH/GX/GL11-4 | Guangxi | Broiler | Nephritis | 14 | 1617/539 | HRRRR | KJ524607 |
| CK/CH/GX/YL12-1 | Guangxi | Broiler | Nephritis | 40 | 1620/540 | HRRRR | KJ524608 |
| CK/CH/GD/CG12-2 | Guangdong | Broiler | Nephritis | 25 | 1620/540 | HRRRR | KJ524609 |
| CK/CH/GD/CG12-1 | Guangdong | Broiler | Nephritis | 17 | 1617/539 | RRFRR | KJ524610 |
| CK/CH/ZJ/QZ12-1 | Zhejiang | Broiler | Respiratory | 9 | 1620/540 | RRFRR | KJ524611 |
| CK/CH/ZJ/QZ12-2 | Zhejiang | Broiler | Nephritis | 20 | 1620/540 | HRRRR | KJ524612 |
| CK/CH/SC/DY12-1 | Sichuan | Broiler | Nephritis | 44 | 1620/540 | RRLRR | KJ524613 |
| CK/CH/SC/DY12-2 | Sichuan | Broiler | Respiratory | 9 | 1620/540 | HRRRR | KJ524614 |
| CK/CH/GD/LY12 | Guangdong | Broiler | Nephritis | 15 | 1620/540 | HRRRR | KJ524615 |
| CK/CH/GX/GL12-2 | Guangxi | Broiler | Nephritis | 10 | 1632/544 | HRRRR | KJ524616 |
| CK/CH/GX/GL12-3 | Guangxi | Broiler | Respiratory | 12 | 1632/544 | HRRRR | KJ524619 |
| CK/CH/GX/YL12-2 | Guangxi | Broiler | Nephritis | 16 | 1620/540 | RRFRR | KJ524640 |
| CK/CH/YN/SL12-1 | Yunnan | Broiler | Nephritis | 19 | 1620/540 | RRSRR | KJ524620 |
| CK/CH/ZJ/HZ12 | Zhejiang | Broiler | Nephritis | 22 | 1620/540 | HRRRR | KJ524621 |
| CK/CH/SC/DY12-3 | Sichuan | Broiler | Nephritis | 27 | 1617/539 | HRRRR | KJ524622 |
| CK/CH/GX/NN12-1 | Guangxi | Broiler | Nephritis | 10 | 1620/540 | RRLRR | KJ524623 |
| CK/CH/GX/ZS12 | Guangxi | Broiler | Respiratory | 31 | 1620/540 | HRRRR | KJ524624 |
| CK/CH/HuN/CX12 | Hunan | Layer hen | Egg drop | 205 | 1620/540 | HRRRR | KJ524639 |
| CK/CH/GD/LZ12 | Guangdong | Layer hen | Egg drop | 270 | 1620/540 | HRRRR | KJ524638 |
| CK/CH/HuN/NX12 | Hunan | Broiler | Respiratory | 28 | 1623/541 | HRRRR | KJ524625 |
| CK/CH/SC/MS12-1 | Sichuan | Broiler | Respiratory | 29 | 1611/537 | RRIRR | KJ524626 |
| CK/CH/SC/MS12-2 | Sichuan | Broiler | Nephritis | 36 | 1620/540 | HRRRR | KJ524627 |
| CK/CH/JS/LYG12 | Jiangsu | Broiler | Nephritis | 30 | 1620/540 | HRRRR | KJ524628 |
| CK/CH/HuB/HC12 | Hubei | Broiler | Respiratory | 71 | 1617/539 | HRRRR | KJ524629 |
| CK/CH/FJ/ZZ12 | Fujian | Layer hen | Egg drop | 285 | 1620/540 | RRSRR | KJ524630 |
| CK/CH/YN/SL12-2 | Yunnan | Broiler | Respiratory | 21 | 1620/540 | RRFRR | KJ524631 |
| CK/CH/YN/SL12-3 | Yunnan | Broiler | Nephritis | 23 | 1620/540 | HRRRR | KJ524636 |
| CK/CH/YN/SL12-4 | Yunnan | Broiler | Nephritis | 30 | 1620/540 | RRSRR | KJ524633 |
| CK/CH/GX/NN12-2 | Guangxi | Broiler | Respiratory | 15 | 1620/540 | RRFRR | KJ524634 |
| CK/CH/GD/XX12 | Guangdong | Broiler | Nephritis | 22 | 1620/540 | RRSRR | KJ524641 |
| CK/CH/GX/GL12-4 | Guangxi | Broiler | Nephritis | 28 | 1635/545 | HRRKR | KJ524635 |
| CK/CH/FJ/PT12 | Fujian | Broiler | Nephritis | 30 | 1620/540 | RRFRR | KJ544558 |
aProvince where viruses were isolated
bLengths of nucleotide and deduced amino acids of S1 glycoprotein gene
cCleavage recognition motifs of S1 glycoprotein gene
HRRRR His-Arg-Arg-Arg-Arg (32 times), RRFRR Arg-Arg-Phe-Arg-Arg (16 times), RRLRR Arg-Arg-Leu-Arg-Arg (6 times), HRRKR His-Arg-Arg-Lys-Arg (3 time), RRSRR Arg-Arg-Ser-Arg-Arg (4 time), RRIRR Arg-Arg-Ile-Arg-Arg (1 time)