Table 3.
Pathogenicity of airborne NDV isolates.
NDV strain | Chicken house | DAa | MDTb | ICPIc | IVPId | Virulence |
---|---|---|---|---|---|---|
NDV01 | A | 0.5–0.7 | 100 | 0.0 | 0.00 | Avirulent |
NDV02 | B | 1.9–2.1 | 54.4 | 1.70 | 2.70 | Virulent |
NDV03 | B | 0.5–0.7 | 101 | 0.20 | 0.00 | Avirulent |
NDV04 | C | 2.1–2.3 | 46 | 1.91 | 2.56 | Virulent |
NDV05 | C | 1.9–2.2 | 58.5 | 1.75 | 2.73 | Virulent |
NDV06 | C | 0.5–0.7 | 100 | 0.46 | 0.00 | Avirulent |
NDV07 | E | 0.5–0.6 | 101 | 0.52 | 0.16 | Avirulent |
Diameter of Plaque (mm).
Mean death time (MDT).
Intracerebral pathogenicity index (ICPI).
Intravenous pathogenicity index (IVPI).