Volume 12, Number 2—February 2006
Research
Free-grazing Ducks and Highly Pathogenic Avian Influenza, Thailand
Marius Gilbert*
, Prasit Chaitaweesub†, Tippawon Parakamawongsa†, Sith Premashthira†, Thanawat Tiensin†‡, Wantanee Kalpravidh§, Hans Wagner§, and Jan Slingenbergh§¶
, Prasit Chaitaweesub†, Tippawon Parakamawongsa†, Sith Premashthira†, Thanawat Tiensin†‡, Wantanee Kalpravidh§, Hans Wagner§, and Jan Slingenbergh§¶Table A1
Estimated values ± standard error for the nugget, scale, and range of the best-fit spherical models of the spatial correlograms of highly pathogenic avian influenza presence or absence
| Model | Nugget | Scale | Range (km) | r2 |
|---|---|---|---|---|
| Thailand, all outbreaks | 0.727 ± 0.011 | 0.222 ± 0.012 | 52.41 ± 3.66 | 0.946 |
| Thailand, outbreaks in chickens | 0.703 ± 0.017 | 0.243 ± 0.017 | 23.88 ± 2.02 | 0.925 |
| Thailand, outbreaks in ducks | 0.703 ± 0.004 | 0.243 ± 0.005 | 72.41 ± 2.11 | 0.990 |
| Suphanburi Province, all outbreaks | 0.875 ± 0.007 | 0.146 ± 0.007 | 27.35 ± 1.90 | 0.946 |
| Suphanburi Province, outbreaks in chickens | 0.848 ± 0.008 | 0.163 ± 0.008 | 20.20 ± 1.29 | 0.954 |
| Suphanburi Province, outbreaks in ducks | 0.866 ± 0.007 | 0.148 ± 0.007 | 25.05 ± 1.60 | 0.953 |
