Table 5: Summary of Influenza pandemics.
| Name of flue pandemics | Time period | Deaths | Subtype emerged | Reference |
|---|---|---|---|---|
| 1889-1890 flu pandemic | 1889-1890 | 1 million | Possibly H3N2 or H1N1 | (Valleron, 2010) |
| 1918 flu pandemic (Spanish flu) | 1918-1920 | 20 to 100 million | H1N1 | (Mills, 2004) |
| Asian flu | 1957-1958 | 1 to 1.5 million | H2N2 | (Greene, 2006) |
| Hong Kong flu | 1968-1969 | 0.75 to 1 million | H3N2 | (Starling, 2008) |
| Russian flu | 1977-1978 | No accurate count | H1N1 | |
| 2009 flu pandemic | 2009-2010 | 105,700-395,600 | H1N1 | (Donaldson, 2009) |