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  1. en.wikipedia.org › wiki › Black_DeathBlack Death - Wikipedia

    6 giorni fa · The Black Death was a bubonic plague pandemic occurring in Europe from 1346 to 1353. One of the most fatal pandemics in human history, as many as 50 million people perished, perhaps 50% of Europe's 14th century population. Bubonic plague is caused by the bacterium Yersinia pestis and spread by fleas.

  2. 2 giorni fa · e. Biological warfare, also known as germ warfare, is the use of biological toxins or infectious agents such as bacteria, viruses, insects, and fungi with the intent to kill, harm or incapacitate humans, animals or plants as an act of war. [1] Biological weapons (often termed "bio-weapons", "biological threat agents", or "bio-agents ...

  3. 26 apr 2024 · bubonic plague. pneumonic plague. sylvatic plague. septicemic plague. plague, infectious disease caused by Yersinia pestis, a bacterium transmitted from rodents to humans by the bite of infected fleas. Plague was the cause of some of the most-devastating epidemics in history.

    • The Editors of Encyclopaedia Britannica
  4. 16 apr 2024 · Yersinia pestis. Alexandre Yersin (born Sept. 23, 1863, Lavaux, near Aubonne, Switz.—died March 1, 1943, Nha Trang, Annam, Indochina [now in Vietnam]) was a Swiss-born French bacteriologist and one of the discoverers of the bubonic plague bacillus, Pasteurella pestis, now called Yersinia pestis.

  5. 22 apr 2024 · Bubonic plague is a common type of plague that causes inflammation of the lymphatic system, which protects you from infections. Symptoms include: Aches. Fever and chills. Tender lymph nodes....