Table 1 R-value of cross neutralization test with TW-I strains (3575/08, 2575/98), TW-II strain (2296/95) and Mass type (H120).

From: Identification of an infectious bronchitis coronavirus strain exhibiting a classical genotype but altered antigenicity, pathogenicity, and innate immunity profile

IBV strain

3575/08 (TW-I)

2575/98 (TW-I)

2296/95 (TW-II)

H120 (Mass)

3575/08 (TW-I)

100

   

2575/98 (TW-I)

3.3

100

  

2296/95 (TW-II)

3.4

12

100

 

H120 (Mass)

1.1

2.6

12.8

100

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