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Volume 18, Number 12—December 2012

Research

Virulent Avian Infectious Bronchitis Virus, People’s Republic of China

Jinling Feng, Yanxin Hu, Zhijun Ma, Qi Yu, Jixun Zhao, Xiaodong Liu, and Guozhong ZhangComments to Author 
Author affiliations: Author affiliations: The Key Laboratory of Animal Epidemiology and Zoonosis, Ministry of Agriculture, China Agricultural University, Beijing, People’s Republic of China (J.L. Feng, Y.X. Hu, J.X. Zhao, G.Z. Zhang); Animal Husbandry and Veterinary Station of Beijing, Beijing (Z.J. Ma, Q. Yu, X.D. Liu)

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Table 2

Percent sequence identities between the YN isolate and 10 selected IBV strains, People’s Republic of China

Gene 3
Gene 4
Gene 5
Gene 6
3′ UTR Genome
3a† 3b† 3c (E)† M† 5a† 5b† N†
DY07 92.5 (91.2) 76.6 (65.1) 87.8 (88.9) 92.8 (96.9) 92.4 (92.3) 91.2 (85.4) 86.4 (92.2) 96.7 89.5
LX4 93.1 (91.5) 74.1 (66.7) 87.5 (88.2) 91.3 (93.0) 89.9 (87.9) 90 (89.3) 85.9 (90.3) 76.9 87.5
A2 87.4 (80.7) 78.4 (67.2) 87.5 (88.2) 91.9 (93.8) 83.9 (78.8) 91.2 (86.9) 85.9 (90.0) 95.2 87.9
SC021202 96.6 (93.2) 93.7 (93.6) 98.2 (98.2) 95.6 (98.7) 99.5 (98.5) 99.6 (98.8) 99.7 (100) 98.7 98.0
CK/CH/LSD/05I 84.4 (68.4) 83.7 (70.3) 87.2 (88.2) 89.8 (92.1) 86.5 (81.8) 94.0 (91.7) 88.3 (93,7) 89.4 88.2
CK/CH/LHB/100801 85.2 (84.7) 83.7 (71.9) 87.2 (88.2) 89.7 (93.4) 86.5 (81.8) 94.0 (91.7) 88.1 (91.0) 93.2 87.7
CK/CH/LHLJ/07VII 82.18 (63.2) 82.1 (79.7) 89.0 (88.1) 89.1 (92.9) 81.8 (75.4) 93.6 (89.0) 87.0 (91.2) 98.7 92.5
CK/CH/LDL/101212 81.0 (73.7) 82.1 (78.1) 88.1 (83.5) 89.7 (93.3) 84.9 (80.0) 93.6 (89.0) 87.0 (91.9) 94.6 87.1
M41 82.3 (72.9) 82.6 (79.7) 89.3 (89.1) 89.4 (93.8) 81.4 (74.2) 94.0 (89.3) 88.0 (91.5) 94.2 87.1
H120 81.2 (73.7) 82.6 (78.1) 88.1 (84.5) 89.7 (93.4) 85.5 (80.3) 93.6 (89.3) 87.2 (92.2) 78.9 87.2

*Except for the M41 and H120 strains which are in the IBV vaccine, all other strains are China isolates from different groups. Highest identities are indicated in boldface. IBV, infectious bronchitis virus; UTR, untranslated region.
†Percentage of amino acid identity is shown in the parenthesis.

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