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Histology of the organs of inoculated SPF chickens.
| Organs | Groups |
||||
|---|---|---|---|---|---|
| 0.9%NaCl | rLaSota | rLaSGNPPL | rSGLaNPPL | rSG10 | |
| Trachea | -a | - | - | ++ | +++ |
| Lung | - | - | + | ++ | ++ |
| Proventriculus | - | - | - | + | ++ |
| Cecal tonsil | - | - | - | + | +++ |
| Brain | - | - | - | - | ++ |
| Spleen | - | - | - | - | +++ |
Chickens infected with 0.9%NaCl, rLaSota, rLaSGNPPL, rSGLaNPPL or rSG10 were examined at 4 dpi. aMean of the severity index from two chicks: -, no change; +, mild; ++, moderate; +++, severe.
