Probing Question: Can a pandemic be predicted?

SARS. Ebola. West Nile. Avian flu. Over the past decade, the world has watched and waited to see if these viruses would develop into global health threats. In recent weeks, the World Health Organization (WHO) sent a shockwave through the public when it ranked the emergent influenza swine-A/H1N1 virus--better known as swine flu--at alert Phase 5, implying that an influenza pandemic is imminent.

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<p><a href="http://www.physorg.com/news163352310.html">Probing Question: Can a pandemic be predicted?</a></p> <p>SARS. Ebola. West Nile. Avian flu. Over the past decade, the world has watched and waited to see if these viruses would develop into global health threats. In recent weeks, the World Health Organization (WHO) sent a shockwave through the public when it ranked the emergent influenza swine-A/H1N1 virus--better known as swine flu--at alert Phase 5, implying that an influenza pandemic is imminent.</p>