H5N1 avian flu viruses (seen in gold) grow inside canine kidney cells (seen in green). Cynthia Goldsmith/CDC hide caption

toggle caption Cynthia Goldsmith/CDC

Questions About Bird Flu Research Swirl Around Private WHO Meeting

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Virologists and other scientists are meeting at the World Health Organization's Geneva headquarters to talk about the bird flu. Pierre Virot/WHO hide caption

toggle caption Pierre Virot/WHO

H5N1 avian flu viruses (seen in gold) grow inside canine kidney cells (seen in green). Cynthia Goldsmith/CDC hide caption

toggle caption Cynthia Goldsmith/CDC

Scientists Debate How To Conduct Bird Flu Research

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