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The 1918–1920 flu pandemic, also known as the Great Influenza epidemic or by the common misnomer Spanish flu, was an exceptionally deadly global influenza pandemic caused by the H1N1 subtype of the influenza A virus. The earliest documented case was March 1918 in the state of Kansas in the United States, with further cases recorded in France ...
This is a timeline of influenza, briefly describing major events such as outbreaks, epidemics, pandemics, discoveries and developments of vaccines.In addition to specific year/period-related events, there is the seasonal flu that kills between 250,000 and 500,000 people every year and has claimed between 340 million and 1 billion human lives throughout history.
The Influenza A virus subtypes that have been confirmed in humans, ordered by the number of known human pandemic deaths, are: [citation needed] H1N1 caused Spanish flu, 1977 Russian flu, and the 2009 swine flu pandemic (novel H1N1) H2N2 caused Asian flu. H3N2 caused Hong Kong flu. H5N1 is bird flu, endemic in avians.
The year was 1918. As World War I was ending, the Spanish Flu began ravaging the world. Within a year, it killed 675,000 Americans and 50 million worldwide -- 10 million more than those who ...
Frequency. 3–5 million severe cases per year [1][2] Deaths. >290,000–650,000 deaths per year [3][4] Influenza, commonly known as " the flu " or just " flu ", is an infectious disease caused by influenza viruses. Symptoms range from mild to severe and often include fever, runny nose, sore throat, muscle pain, headache, coughing, and fatigue.
That is exactly what happened with the 2009 H1N1 swine flu and the Spanish flu of 1918 pandemics. Influenza A subtypes. Influenza A (but not B) also has subtypes labeled H and N. These refer to ...
Influenza vaccine. Influenza vaccines, colloquially known as flu shots, are vaccines that protect against infection by influenza viruses. [14][15] New versions of the vaccines are developed twice a year, as the influenza virus rapidly changes. [14] While their effectiveness varies from year to year, most provide modest to high protection ...
Spanish flu research. An electron micrograph of the virus that caused the 1918 flu. ... Look for "/1918" on the full list of H1N1 strains. Spanish flu research concerns studies regarding the causes and characteristics of the Spanish flu, a variety of influenza that in 1918 was responsible for the worst influenza pandemic in modern history.