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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.
Just two years after influenza viruses were discovered, in 1933, influenza A virus was identified as the agent responsible for human influenza. [ 76 ] [ 81 ] Subtypes of influenza A virus were discovered throughout the 1930s, [ 77 ] and influenza B virus was discovered in 1940.
Influenza viruses A and B are estimated to have diverged from a single ancestor around 4,000 years ago, while the ancestor of influenza viruses A and B and the ancestor of influenza virus C are estimated to have diverged from a common ancestor around 8,000 years ago. [40] Outbreaks of influenza-like disease can be found throughout recorded history.
Sir Christopher Howard Andrewes FRS (7 June 1896 – 31 December 1988) was a British virologist who discovered the human influenza A virus in 1933. Education
The Asian Flu was a pandemic outbreak of H2N2 avian influenza that originated in China in 1957, spread worldwide that same year during which an influenza vaccine was developed, lasted until 1958 and caused between one and four million deaths.
Image credits: National Geographic #5. The 'Spanish Flu' actually likely got its start in Kansas, USA. It's only called the Spanish Flu because most countries involved in WWI had a near-universal ...
Scientists say the world needs to learn more about H5N1 bird flu and how it spreads ... said.”I mean just this past year it went to dairy. ... discovered that cows infected with H5N1 could ...
Children should get a flu shot every year, starting when they are 6 months old, the CDC recommends. Children older than 6 months are also eligible for a COVID-19 shot. Children older than 6 months ...