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A visual history of pandemics

https://www.weforum.org/agenda/2020/03/a-visual-history-of-pandemics

weforum.org

A visual history of pandemics
As humans have spread across the world, so have infectious diseases. Even in this modern era, outbreaks are nearly constant, though not every outbreak reaches pandemic level as the COVID-19 has.

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A History Of Pandemics

A History Of Pandemics
  • A Pandemic is defined as the proliferation of a disease over the whole country or the entire world.
  • Diseases and illnesses have troubled humanity since the earliest days, but can now occur with increased frequency due to rapid urbanization and globalism. The death toll numbers in Pandemics over the ages are estimates based on available research, and may not be accurate.
  • Earlier it was believed that Pandemics are God’s punishment on humans, but now, as our understanding has increased, the response to these outbreaks has improved.

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Quarantined

  • The original use of the word Quarantine was the act of anchoring a ship arrived in Venice, Italy, for 40 days before landing.
  • Infectiousness of any disease is measured by the reproduction number (R0, or R naught). For example, Smallpox has an R0 of 6 whereas Measles has an R0 of 16. 
  • Vaccination, if available, and herd immunity can curb the spread of disease.
  • Big cities, with exploding population and traffic, can lead to the rapid spread of any infectious disease.

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While shaking hands reveals the need to connect with the other and be socially engaged, several disease experts are encouraging us to find a substitute that would endanger less our health throughout periods of pandemics and not only. For instance, greetings such as simply stating how much of a pleasure it is to meet a person could actually do the trick.

Adapting our social habits

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