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Table 3 Histological lesions in the experimentally infected groups ( n = 5)

From: Synergistic effects of sequential infection with highly pathogenic porcine reproductive and respiratory syndrome virus and porcine circovirus type 2

Tissues lesion Groups
HP-PRRSV/PCV2 (group 1) PCV2/HP-PRRSV (group 2) HP-PRRSV+PCV2 (group 3) HP-PRRSV (group 4) PCV2 (group 5) Control (group 6)
Lymphocytes infiltrating heart 3/5 2/5 3/5 2/5 0/5 0/5
Hepatic granular degeneration 1/5 0/5 4/5 3/5 0/5 0/5
Spleen lymphocyte depletion 4/5 1/5 0/5 0/5 1/5 0/5
Interstitial pneumonia 5/5 5/5 5/5 5/5 1/5 0/5
Tonsil lymphocyte depletion 2/5 1/5 0/5 0/5 0/5 0/5
Lymph-node lymphocyte depletion 4/5 3/5 1/5 2/5 1/5 0/5
Brain neuronal swelling 2/5 0/5 0/5 0/5 0/5 0/5
Duodenal histiocytosis 5/5 3/5 1/5 3/5 1/5 0/5