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Table 2 Antibody titers in chicken sera in this study

From: Effect of the selection pressure of vaccine antibodies on evolution of H9N2 avian influenza virus in chickens

Generation

Immunized

Nonimmunized

Chicken-1

Chicken-2

Chicken-3

Chicken-1

Chicken-2

Chicken-3

1

40

40

40

0

0

0

2

40

40

40

0

0

0

3

40

40

40

0

0

0

4

40

40

40

0

0

0

5

40

40

40

0

0

0

6

40

40

40

0

0

0

7

40

40

40

0

0

0

8

40

40

40

0

0

0

9

40

40

40

0

0

0

10

40

40

40

0

0

0

11

320

320

320

0

0

0

12

320

320

320

0

0

0

13

320

320

320

0

0

0

14

320

320

320

0

0

0

15

320

320

320

0

0

0

16

320

320

320

0

0

0

17

320

320

320

0

0

0

18

320

320

320

0

0

0

19

320

320

320

0

0

0

20

320

320

320

0

0

0