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First case in the world
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Period: to
Origins
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First death in the world
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First mention of the Flu by the WHO
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Community outbreaks in USA and Mexico
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World pandemic phase 4 started
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World pandemic phase 5 started
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First human to animal transmission
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First animal to human transmission
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World pandemic phase 6 started
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June cases were duplicated
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Flu activity started to decrease
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Virus became resistant to Oseltamivir
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Vaccin creation started
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First death of a Head of State
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4 vaccines got approval
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First mass vaccination in the world
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Second wave started
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Fifth vaccine got approval
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Period: to
Virus activity decreased
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WHO encouraged people to get vaccines
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WHO declared end of pandemic