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In 1918–1919, 99% of pandemic influenza deaths in the U.S. occurred in people under 65, and nearly half of deaths were in young adults 20 to 40 years old. In 1920, the mortality rate among people under 65 had decreased sixfold to half the mortality rate of people over 65, but 92% of deaths still occurred in people under 65. [ 300 ]
For a given epidemic or pandemic, the average of its estimated death toll range is used for ranking. If the death toll averages of two or more epidemics or pandemics are equal, then the smaller the range, the higher the rank. For the historical records of major changes in the world population, see world population. [3]
The 1918–1920 flu pandemic is commonly referred to as the Spanish flu, and caused millions of deaths worldwide. To maintain morale, wartime censors minimized early reports of illness and mortality in Germany , the United Kingdom , France , and the United States .
The Spanish Flu, the second deadliest pandemic in history after the bubonic plague, along with the aftermath of World War I and ensuing political and social chaos, made 1918 a tough time to be alive.
The difference between the influenza mortality age-distributions of the 1918 epidemic and normal epidemics. Deaths per 100,000 persons in each age group, United States, for the interpandemic years 1911–1917 (dashed line) and the pandemic year 1918 (solid line). [57] The Spanish flu pandemic lasted from 1918 to 1920. [58]
For the 1918 flu, people infected numbers (500 million), mortality rate (2~3%) contradict the deaths worldwide "20–100 million" statements. Review needed. Lead: Johnson NPAS, Mueller (2002). "Updating the Accounts: Global Mortality of the 1918–1920 Spanish Influenza Pandemic". Kilbourne ED (January 2006). "Influenza pandemics of the 20th ...
On 18 January 2007, Kobasa et al. reported that infected monkeys (Macaca fascicularis) exhibited classic symptoms of the 1918 pandemic and died from a cytokine storm. [24] The sequences of the polymerase proteins (PA, PB1, and PB2) of the 1918 virus and subsequent human viruses differ by only 10 amino acids from the avian influenza viruses.
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.