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Created page with "== Introduction == An influenza pandemic is an epidemic of an influenza virus that spreads across a large region, either across continents or worldwide, affecting a large number of individuals. Influenza pandemics occur when a new strain of the influenza virus is transmitted to humans from another animal species. Species that can be infected by influenza virus include birds, pigs, and humans. == History == Influenza pandemics have occurred throu..."
