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The role of wild birds in the spread of influenza H5N1 virus remains speculative and the ecology of influenza A viruses in nature is largely unstudied. There is an urgent need for multidisciplinary studies to explore the ecology of avian influenza viruses in wild birds and the environment to support ecological interpretation of the source of disease outbreaks in poultry.
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Melville et al. (2006) studied this question.
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