Pandemics That Changed History
1) When an epidemic spreads beyond a country's borders, that 's when the disease officially becomes a pandemic. An epidemic is a widespread occurrence of an infectious disease in a community.
2) The disease is the bubonic plague. It was an infectious disease that is caused by the bacterium Yersinia pestis and is transmitted to humans from infected rats by the original rat flea.
3) The plague originated in China in the early to mid-1300s. It reached southern England in 1348 and northern Britain and Scandinavia by 1350.
4) Some symptoms are Fever, chills, extreme weakness, diarrhea, and vomiting. It spread through infected fleas and small animals.
5) It infected Europe the worst killing 30% to 60% of Europe's population.
6) Bubonic plague is fatal in about 50-70% of untreated cases, but perhaps 10-15% when treated.
2) The disease is the bubonic plague. It was an infectious disease that is caused by the bacterium Yersinia pestis and is transmitted to humans from infected rats by the original rat flea.
3) The plague originated in China in the early to mid-1300s. It reached southern England in 1348 and northern Britain and Scandinavia by 1350.
4) Some symptoms are Fever, chills, extreme weakness, diarrhea, and vomiting. It spread through infected fleas and small animals.
5) It infected Europe the worst killing 30% to 60% of Europe's population.
6) Bubonic plague is fatal in about 50-70% of untreated cases, but perhaps 10-15% when treated.
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