Table 4.
Results of histopathologic analysis of lesions and distribution NDV in tissues of ECE.
Tissue | Necrosis | Hemorrhage | Inflammatory cell infiltration | Distribution/expression | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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|
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A | B | C | D | A | B | C | D | A | B | C | D | A | B | C | D | |
Brain | +++ | - | - | - | +++ | + | + | - | ++ | - | - | - | ++/++ | ++/++ | - | - |
Trachea | ++ | + | + | - | ++ | + | ++ | - | ++ | ++ | +++ | - | +++/+++ | +++/+++ | +++/+++ | - |
Lungs | +++ | + | + | - | +++ | + | + | - | +++ | + | + | - | +++/+++ | +++/+ | +++/+++ | - |
Proventriculus | +++ | + | + | - | ++ | + | ++ | - | ++ | + | ++ | - | +++/+++ | +++/++ | ++/+++ | - |
Intestinum | +++ | + | - | - | ++ | + | + | - | ++ | + | - | - | +++/+++ | +++/+++ | - | - |
Heart | + | - | - | - | +++ | ++ | ++ | - | ++ | - | - | - | +++/+++ | ++/++ | - | - |
Kidney | +++ | - | ++ | - | +++ | + | ++ | - | +++ | + | + | - | +++/+++ | +++/++ | ++/++ | - |
Liver | ++ | ++ | - | - | +++ | ++ | ++ | - | ++ | - | - | - | +++/+++ | +++/+++ | - | - |
Skin | +++ | - | - | - | +++ | + | + | - | +++ | - | - | - | +++/+++ | +++/+++ | - | - |
NDV = Newcastle disease virus, A = NDV Velogenic, B = NDV Lentogenic, C = NDV vaccine strain LaSota and D = Negative control. Lesion (+) = focal, (++) = multifocal, and (+++) = diffuse. IHC staining (+) = low, (++) = moderate, and (+++) = severe