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WHO | Current WHO phase of pandemic alert
printable version Current WHO phase of pandemic alert Current phase of alert in the WHO global in... printable version Current WHO phase of pandemic alert Current phase of alert in the WHO global influenza preparedness plan - WHO global influenza preparedness plan Experts at WHO and elsewhere believe that the world is now closer to another influenza pandemic than at any time since 1968, when the last of the previous century's three pandemics occurred. WHO uses a series of six phases of pandemic
2009/05/03 リンク