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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 body and causing associated symptoms.
Human infectious diseases may be characterized by their case fatality rate (CFR), the proportion of people diagnosed with a disease who die from it (cf. mortality rate).It should not be confused with the infection fatality rate (IFR), the estimated proportion of people infected by a disease-causing agent, including asymptomatic and undiagnosed infections, who die from the disease.
While figures for humans are not available, allometric scaling, which takes into account body surface area, is often used to compare doses in different animals, with useful results. [6] Scaling 2g/kg from rats suggests that a 60 kg (132 lb) person would be significantly affected by 27 grams (0.95 oz) [7] of pure putrescine.
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 ...
The bubonic plague is a devastating disease that kills your body from the inside out. 75 million people, including over half of Europe's population, were affected by the disease in the 14th century.
Colorado health officials have confirmed a human case of the plague, the rare bacterial infection infamously known for killing tens of millions in 14th century Europe. Today, it's easily treated ...
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]
Plague, one of the deadliest bacterial infections in human history, caused an estimated 50 million deaths in Europe during the Middle Ages when it was known as the Black Death.