Emerging Infectious Disease ISSN: 1080-6059

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§¶

Author affiliations: *Université Libre de Bruxelles, Brussels, Belgium; †Department of Livestock Development, Bangkok, Thailand; ‡Utrecht University, Utrecht, the Netherlands; §Food and Agriculture Organization, Bangkok, Thailand; ¶Food and Agriculture Organization, Rome, Italy

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Figure 3

Distribution of highly pathogenic avian influenza (HPAI) outbreaks in chickens and ducks, Thailand, July 3, 2004–May 5, 2005, and respective distribution of broilers and layers hens, native chicken, meat and layer ducks, and free-grazing duck populations.

Figure 3. Distribution of highly pathogenic avian influenza (HPAI) outbreaks in chickens and ducks, Thailand, July 3, 2004–May 5, 2005, and respective distribution of broilers and layers hens, native chicken, meat and layer ducks, and free-grazing duck populations.

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