Table 2.
Properties of recombinant NDV strains: HN protein and virulence.
| Virus | Parent | ICPI | IVPI | MDT | Reference |
|---|---|---|---|---|---|
| rBC | Beaudette C | 1.58* | 62 | [27] | |
| rBC(HN)L | Beaudette C | 1.02* | 72 | [27] | |
| rBC | Beaudette C | 1.66 | 2.06 | 48 | [24] |
| rBC(HN)L | Beaudette C | 1.58 | 1.27 | 60 | [24] |
| rBC(HN)Y526Q | Beaudette C | 1.33 | 98 | [79] | |
| rLaSota | LaSota | 0.00* | 0.00† | 96 | [27] |
| rLaSota | LaSota | 0.19 | 0.00 | > 90 | [24] |
| rLaSota(HN)BC | LaSota | 0.75* | 0.38† | 84 | [27] |
| rLaSota(HN)BC | LaSota | 0.00 | 0.00 | > 90 | [24] |
| NDFLtag | LaSota | 1.28 | 0.76 | [49] | |
| NDFLtag(HN)H | LaSota | 1.40 | 1.83 | [49] | |
| NDFLtag(HN)LH | LaSota | 1.28 | 1.52 | [49] | |
| NDFLtag(HN)HL | LaSota | 1.31 | 1.82 | [49] | |
| FL-Herts | Herts/33 | 1.63 | 2.29 | 59 | [49] |
| FL-Herts(HN)L | Herts/33 | 1.45 | 0.95 | 75 | Dortmans et al., unpublished |
| FL-Herts(HN)LH | Herts/33 | 1.40 | 1.76 | 64 | Dortmans et al., unpublished |
| FL-Herts(HN)HL | Herts/33 | 1.26 | 0.07 | 86 | Dortmans et al., unpublished |
| rAnh | Anhinga | 0.89 | 88 | [48] | |
| rAnh(HN)Tk | Anhinga | 1.00 | 84 | [48] | |
| rAnh(HN)CA | Anhinga | 0.86 | 72 | [48] |
* ICPI inoculum: 103 PFU virus/chicken.
† IVPI inoculum: 103 PFU virus/chicken.
Superscript L: HN gene originating from strain LaSota.
Superscript BC: HN gene originating from strain Beaudette C.
Superscript H: HN gene originating from strain Herts/33.
Superscript LH: stem region originating from strain LaSota, globular head originating from strain Herts/33.
Superscript HL: stem region originating from strain Herts/33, globular head originating from strain LaSota.
Superscript Tk: HN gene originating from strain Turkey/92.
Superscript CA: HN gene originating from strain California/02.