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WHO Pandemic Alert Levels

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Will the Swine Flu of 2009 become a pandemic, and if so when?

Review the WHO Pandemic Alert Levels below, consider the cases in Mexico, the U.S., and Canada alone, not withstanding the rapid and uncontrolled spread to other countries throughout the world, and come to your own conclusion.

WHO ALERT LEVELS
In Phase 1 no viruses among animals reported to have caused infections in humans.

In Phase 2 animal flu virus is known to have caused infection in humans and is potential pandemic threat.

In Phase 3, animal or human-animal flu virus has caused small number of cases in people, but not sufficient for community-level outbreaks.

Phase 4 is characterized by verified human-to-human transmission of animal or human-animal flu virus, indicating greater but not inevitable risk of pandemic.

Phase 5 means human-to-human spread of virus is confirmed in two countries in one WHO region and pandemic is feared imminent.

Phase 6 characterized by community-level outbreaks in at least one other country in second WHO region. This phase indicates global pandemic is under way.

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