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Influenza, commonly known as the flu, is an infectious disease caused by influenza viruses. Symptoms range from mild to severe and often include fever, ...
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 ...
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.
Reasonably effective ways to reduce the transmission of influenza include good personal health and hygiene habits such as: not touching your eyes, nose or mouth; [6] frequent hand washing (with soap and water, or with alcohol-based hand rubs); [6] eating a diet rich in fruits and vegetables; [16] covering coughs and sneezes; avoiding close contact with sick people; and staying home yourself if ...
Treatments for influenza include a range of medications and therapies that are used in response to disease influenza. Treatments may either directly target the influenza virus itself; or instead they may just offer relief to symptoms of the disease, while the body's own immune system works to recover from infection.
The second wave came with the influx of influenza A viruses, such as H1N1. [3] According to preliminary burden estimates for the 2019–2020 flu season (October 1, 2019 through April 4, 2020) there were between 39 and 56 million flu cases; 18–26 million doctor visits; 410,000 to 740,000 hospitalizations, and between 24,000 and 62,000 deaths.
The following is a list of WHO recommended strains for the Northern Hemisphere influenza season. Starting in the 2012–2013 season, the recommendation shifted to include the composition of a quadrivalent influenza vaccine (QIV) that contains both influenza B lineages, alongside a trivalent influenza vaccine (TIV) containing one influenza B lineage.
1510 influenza pandemic; 1557 influenza pandemic; 1580 influenza pandemic; 1626 influenza pandemic; 1782 Influenza pandemic; 1789–1790 influenza epidemic; 1889–1890 pandemic; 1918 flu pandemic in India; 1957–1958 influenza pandemic; 1977 Russian flu; 1998 Winter Olympics flu epidemic; 2008 H5N1 outbreak in West Bengal; 2009 swine flu pandemic