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25,000,000 – 50,000,000 (estimated) The Black Death was a bubonic plague pandemic occurring in Europe from 1346 to 1353. It was one of the most fatal pandemics in human history; as many as 50 million people [2] perished, perhaps 50% of Europe's 14th century population. [3] The disease is caused by the bacterium Yersinia pestis and spread by ...
Additional symptoms include extreme fatigue, gastrointestinal problems, spleen inflammation, lenticulae (black dots scattered throughout the body), delirium, coma, organ failure, and death. [20] Organ failure is a result of the bacteria infecting organs through the bloodstream. [14]
Plague (disease) Yersinia pestis seen at 200× magnification with a fluorescent label. Plague is an infectious disease caused by the bacterium Yersinia pestis. [2] Symptoms include fever, weakness and headache. [1] Usually this begins one to seven days after exposure. [2] There are three forms of plague, each affecting a different part of the ...
Genes that offered protection against the Black Death pandemic more than 700 years ago are today associated with an increased susceptibility to autoimmune diseases such as Crohn’s and rheumatoid ...
Theories of the Black Death. Theories of the Black Death are a variety of explanations that have been advanced to explain the nature and transmission of the Black Death (1347–51). A number of epidemiologists from the 1980s to the 2000s challenged the traditional view that the Black Death was caused by plague based on the type and spread of ...
Symptoms of the Bubonic Plague included painful and enlarged or swollen lymph nodes, headaches, chills, fatigue, vomiting, and fevers, and within 3 to 5 days, 80% of the victims would be dead. [1] Historians estimate that it reduced the total world population from 475 million to between 350 and 375 million.
The Black Death was a bubonic plague pandemic, which reached England in June 1348. It was the first and most severe manifestation of the second pandemic, caused by Yersinia pestis bacteria. The term Black Death was not used until the late 17th century. Originating in Asia, it spread west along the trade routes across Europe and arrived on the ...
Acral necrosis is a symptom common in bubonic plague. The striking black discoloration of skin and tissue, primarily on the extremities ("acral"), is commonly thought to have given rise to the name " Black Death," associated both with the disease and the pandemic which occurred in the 14th century. The term in fact came from the figural sense ...