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Table 2 The number of apoptotic cells in immune organs and lungs at different days post-infection (DPI)

From: Comparative analysis of apoptotic changes in peripheral immune organs and lungs following experimental infection of piglets with highly pathogenic and classical porcine reproductive and respiratory syndrome virus

DPI*

The number of apoptotic cells (per mm2)

 

Tonsil

ILN

Spleen

Lung

 

1

2

3

1

2

3

1

2

3

1

2

3

0

0.4 ± 0.2

0.5 ± 0.2

0.4 ± 0.2

0.4 ± 0.2

0.3 ± 0.2

0.4 ± 0.2

0.4 ± 0.2

0.2 ± 0.1

0.3 ± 0.2

0.4 ± 0.2

0.4 ± 0.2

0.3 ± 0.2

3

17.7 ± 0.9a

5.0 ± 0.7 b

0.3 ± 0.2c

18.3 ± 0.8a

6.3 ± 0.5b

0.4 ± 0.2c

8.1 ± 0.5a

4.3 ± 0.5b

0.4 ± 0.2c

8.2 ± 0.8a

2.8 ± 0.5b

0.4 ± 0.2c

7

20.0 ± 0.8a

7.7 ± 0.4b

0.4 ± 0.2c

21.5 ± 0.6a

9.0 ± 0.5b

0.4 ± 0.2c

13.0 ± 0.8a

7.3 ± 0.4b

0.4 ± 0.2c

8.7 ± 0.7a

4.4 ± 0.6b

0.4 ± 0.2c

10

21.9 ± 1.4a

11.0 ± 0.8b

0.5 ± 0.2c

23.8 ± 0.8a

13.6 ± 0.5b

0.4 ± 0.2c

19.4 ± 0.9a

9.5 ±0.4b

0.5 ± 0.2c

9.0 ± 0.4a

5.6 ± 0.6b

0.4 ±0.2c

14

14.8 ± 0.8a

12.6 ± 0.8a

0.2 ± 0.1b

14.2 ± 0.8a

10.4 ± 0.7b

0.4 ± 0.2c

14.2 ± 0.6a

13.9 ± 0.8a

0.4 ± 0.2b

6.8 ± 0.5a

6.1 ± 0.4a

0.3 ± 0.2b

  1. *Days post-inoculation when pigs were necropsied.
  2. a,b,cValues with different superscripts indicate mean value score differences among groups (P < 0.05).