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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.
Between the fall of 1789 and the spring of 1790, influenza occurred extensively throughout the United States and North America more broadly. First reported in the southern United States in September, it spread throughout the northern states in October and November, appeared about the same time in the West Indies, and reached as far north as Nova Scotia before the end of 1789.
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.
Pandemic: It’s a scary word. But the world has seen pandemics before, and worse ones, too. Consider the influenza pandemic of 1918, often referred to erroneously as the “Spanish flu ...
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.
Influenza vaccines, colloquially known as flu shots [28] or the flu jab, [29] are vaccines that protect against infection by influenza viruses. [ 30 ] [ 31 ] New versions of the vaccines are developed twice a year, as the influenza virus rapidly changes. [ 30 ]
Wondering when flu season is? Flu season typically begins in fall and lasts until spring. Here’s what experts expect this year and how to protect yourself.
It’s been deemed the worst bird flu outbreak in American history—and the virus is showing no signs of stopping. Since the beginning of this year, nearly 2.5 million birds from commercial and ...