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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).