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The Black Death was a bubonic plague pandemic that occurred 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 fleas and through the air.
This is an accepted version of this page This is the latest accepted revision, reviewed on 17 December 2024. Disease caused by Yersinia pestis bacterium This article is about the disease caused by Yersinia pestis. For other uses, see Plague. Medical condition Plague Yersinia pestis seen at 200× magnification with a fluorescent label. Specialty Infectious disease Symptoms Fever, weakness ...
The plague is considered the likely cause of the Black Death that swept through Asia, Europe, and Africa in the 14th century and killed an estimated 50 million people, [1] [10] including about 25% to 60% of the European population. [1] [11] Because the plague killed so many of the working population, wages rose due to the demand for labor. [11]
There are two main forms of plague infection: bubonic, which is caused by a flea bite or blood contact with another infected animal or material and is characterized by swollen lymph nodes or ...
Mortality from bubonic plague today is between 1% and 10%, whereas septicemic plague may have mortality as high as 50% — and if untreated, it's over 90%. Fleas can spread other diseases too
While the treatments have changed, the carriers haven't; most of the plague carriers are rodents and other smaller woodland mammals. Squirrels, chipmunks, rats, cats and prairie dogs all can carry ...
Copper engraving of a plague doctor of 17th-century Rome. A plague doctor was a physician who treated victims of bubonic plague [1] during epidemics in 17th-century Europe. These physicians were hired by cities to treat infected patients regardless of income, especially the poor, who could not afford to pay.
The septicemic plague was the least common of the three plague varieties that occurred during the Black Death from 1348 to 1350 [10] (the other two being bubonic plague and pneumonic plague). Like the others, septicemic plague spread from East Asia through trade routes on the Black Sea and down to the Mediterranean Sea. [citation needed]