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H2 Virus
Before 1889 the flu virus was just part of the H1 family. But the H2 virus then came from Russia which killed a lot of people. -
Spanish Flu
The “Spanish flu” epidemic of 1918 kills at least 50 million people worldwide. -
1st Swine Flu
Swine flu is first isolated from a pig in Iowa -
First Human Swine Virus
The first human flu virus is isolated at Mill Hill in London. -
Army Flu
An H1N1 virus kills a US army recruit but the virus does not spread out of the army base. -
H1N1 in China
An H1N1 virus appears in north-east China and was in humans. -
Predescessor of H1N1
Outbreak of the predecessor of the 2009 H1N1 swine flu virus in the United States. -
New Swine Flu
The first cases of a new type of swine flu are reported in California and Texas in late March.