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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.
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.
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.
A History of Public Health: From Past to Present (2022) online; Coombs, Jan. "The Health of Central Wisconsin Residents in 1880: A New View of Midwestern Rural Life" Wisconsin Magazine of History 68#4 (1985), pp. 284-311 online; Deutsch, A. The Mentally Ill in America: A History of Their Care and Treatment from Colonial Times (1937). Duffy, John.
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.
The Centers for Disease Control and Prevention (CDC) identified the first two A/09(H1N1) swine flu cases in California on April 17, 2009, via the Border Infectious Disease Program, [135] for a San Diego County child, and a naval research facility studying a special diagnostic test, where influenza sample from the child from Imperial County was tested. [136]
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[10] [2] Most commercially available flu vaccines are manufactured by propagation of influenza viruses in embryonated chicken eggs, taking 6–8 months. [2] Flu seasons are different in the northern and southern hemisphere, so the WHO meets twice a year, once for each hemisphere, to discuss which strains should be included based on observation ...