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The world hasn’t seen a pandemic (流行疾病) in 41 years, when the “Hong Kong” flu crossed the globe and killed about one million people worldwide. If H1N1 flu (甲型流感) reaches pandemic levels, what would happen next?
The outbreak of SARS in 2003 rang alarm bells as potential pandemics. Although it jumped the” animal-to-human” barrier, neither disease changed enough to enable human-to-Human infection. Strictly speaking, SARS did not become pandemics because it was too good at killing their hosts. For a pandemic, it needs to be able to maintain human-to-human contact without killing its host off.
