Health Officials Keep Close Watch on Bird Flu An especially virulent strain of the bird flu has spread from Asia to Europe and Africa. Known as H5N1, the virus can infect humans as well as birds. World leaders and health officials are taking the threat of a pandemic seriously, and pressure is on to develop effective containment measures and treatments.

Avian Flu Confirmed in Northern Iraq

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Fourth Bird Flu Death Reported in Turkey

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Ankara Steps Up Efforts to Control Avian Flu

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Staving Off Panic in a Flu Pandemic

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Cases of Bird Flu in Turkey Continue to Rise

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U.S. Plan to Stockpile Bird-Flu Vaccine a Big Gamble

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Seattle at Forefront of Planning for Flu Pandemic

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Sifting Through Official Speak on Bird Flu

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Migrations Complicate Efforts to Thwart Bird Flu

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Mortalities from a Flu Pandemic Hard to Predict

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Vaccine Production May Fail in Flu Pandemic

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Vietnam, Hardest Hit by Bird Flu, Steps Up Fight

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