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One-directional neutralization test of infectious bronchitis virus isolates against antisera of TW-I, TW-II, and Mass types, respectively
| Isolate | No. of protected embryos/no. of total embryos |
|||
|---|---|---|---|---|
| TW-I1 antiserum | TW-II2 antiserum | Mass3 antiserum | PBS control | |
| 3374/05 | 1/10 | 2/10 | 2/10 | 0/3 |
| 3382/06 | 9/10 | 1/10 | 0/10 | 0/5 |
TW-I = Taiwan group I.
TW-II = Taiwan group II.
Mass = Massachusetts.
