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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 412 BC epidemic of an unknown disease, often identified as influenza, [1] [2] [3] was reported in Northern Greece by Hippocrates [4] and in Rome by Livy. [5] Both described the epidemic continuing for roughly a year.
1957–1958 influenza pandemic: Influenza A/H2N2: 1–4 million – 1957–1958 Worldwide 11 Hong Kong flu: Influenza A/H3N2: 1–4 million – 1968–1969 Worldwide 12 1918–1922 Russia typhus epidemic: Typhus: 2–3 million 1–1.6% of Russian population [14] 1918–1922 Russia: 13 Cocoliztli epidemic of 1576: Cocoliztli 2–2.5 million 50% ...
The most recent CDC Weekly U.S. Influenza Surveillance Report shows that 7.8% of visits to a healthcare provider were for respiratory illness, the worst since the swine flu pandemic in late 2009.
Newly released data shows the current U.S. flu season is shattering recent records, topping numbers dating to the early 2000s, when swine flu plagued the country.. Numbers released by the Centers ...
During periods of cooler temperature, influenza cases increase roughly tenfold or more. Despite the higher incidence of manifestations of the flu during the season, the viruses are actually transmitted throughout populations all year round. [citation needed] Each annual flu season is normally associated with a major influenza virus sub type.
Outpatient health care visits for flu illnesses are at their highest levels in 15 years, according to data updated Friday by the Centers for Disease Control and Prevention. Nearly 8% of outpatient ...
Influenza ward at Walter Reed Hospital, in Washington, D.C., during the 1918 flu pandemic. An influenza pandemic is an epidemic of an influenza virus that spreads across a large region (either multiple continents or worldwide) and infects a large proportion of the population.