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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.
The outbreak did not originate in Spain, [48] but reporting did, due to wartime censorship in belligerent nations. Spain was a neutral country unconcerned with appearances of combat readiness , and without a wartime propaganda machine to prop up morale , [ 49 ] [ 50 ] so its newspapers freely reported epidemic effects, making Spain the apparent ...
Influenza, commonly known as the 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 .
In September 1968, the flu reached India, [20] northern Australia, [21] Thailand, [22] and Europe. The same month, the virus entered the United States and was carried by troops returning from the Vietnam War, but it did not become widespread in the country until December 1968. In the USSR, the first cases of the flu began to appear in mid ...
The 1889–1890 pandemic, often referred to as the Asiatic flu [57] or Russian flu, killed about 1 million people [58] [59] out of a world population of about 1.5 billion. It was long believed to be caused by an influenza A subtype (most often H2N2), but recent analysis largely brought on by the 2002-2004 SARS outbreak and the COVID-19 pandemic ...
Has flu season started? Reports of flu and other respiratory illnesses are higher than what would normally be seen in the U.S. this time of year, the CDC said. Flu off to an early start as CDC ...
Flu season is an annually recurring time period characterized by the prevalence of an outbreak of influenza (flu). The season occurs during the cold half of the year in each hemisphere . It takes approximately two days to show symptoms.
The flu is ramping up after a slow start to the season. Positive tests rose 12% for the week ending Dec. 21, compared to the week prior, according to data released Friday by the Centers for ...