1918 influenza pandemic (jan 1, 1918 – dec 1, 1920)
Description:
AKA: Spanish flu
an unusually deadly influenza pandemic, the first of the two pandemics involving H1N1 influenza virus.[1] It infected 500 million people around the world,[2] including people on remote Pacific islands and in the Arctic. Probably 50 million, and possibly as high as 100 million (three to five percent of Earth's population at the time) died, making it one of the deadliest epidemics in human history.[3][4][5] Historical and epidemiological data are inadequate to identify with certainty the pandemic's geographic origin.[2]
Infectious diseases already limited life expectancy in the early 20th century, but life expectancy in the United States dropped by about 12 years in the first year of the pandemic. Most influenza outbreaks disproportionately kill the very young and the very old, with a higher survival rate for those in-between. However, the Spanish flu pandemic resulted in a higher than expected mortality rate for young adults.
To maintain morale, wartime censors minimized early reports of illness and mortality in Germany, the United Kingdom, France, and the United States. Papers were free to report the epidemic's effects in neutral Spain (such as the grave illness of King Alfonso XIII). These stories created a false impression of Spain as especially hard hit, thereby giving rise to the pandemic's nickname, "Spanish flu".
Scientists offer several possible explanations for the high mortality rate of the 1918 influenza pandemic. Some analyses have shown the virus to be particularly deadly because it triggers a cytokine storm, which ravages the stronger immune system of young adults. In contrast, a 2007 analysis of medical journals from the period of the pandemic found that the viral infection was no more aggressive than previous influenza strains. Instead, malnourishment, overcrowded medical camps and hospitals, and poor hygiene promoted bacterial superinfection. This superinfection killed most of the victims, typically after a somewhat prolonged death bed.
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History of Leadership In The States
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