Table 1 Scoring and severity of scoring criteria for ultrastructural changes following in-vitro inoculation by whole cell and LPS endotoxin of P. multocida B:2
Normal Score 0 | Early events (Mild) Score 1 | Intermediate events (Moderate) Score 2 | Late events (Severe) Score 3 |
|---|---|---|---|
Normal organelles | Mitochondrial swelling | Mitochondrial cristolysis | Mitochondrial vacuoles |
Cytocavity network dilation | Cytocavity network membrane fragmentation | Cytoplasmic vesiculation | |
Nuclear envelope dilatation | Nuclear envelope collapse and invagination | Nuclear envelope disintegration | |
Eccentric nucleoli | Nucleoplasm rarefaction | Nuclear chromatin peripheralisation |