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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 ...
The second plague pandemic was a major series of epidemics of plague that started with the Black Death, which reached medieval Europe in 1346 and killed up to half of the population of Eurasia in the next four years.
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 effective reproduction number or reproduction rate, symbolised with R e, is a rate of how many more people are infected from a positive COVID-19 case. In order to suppress an outbreak, the reproduction rate must be constantly below 1, which means each positive case infects less than one person. The Robert Koch Institute measures the ...
Bubonic plague in its endemic form was mentioned for the first time in Chinese sources in 610 and 652, which if presumed to be in connection to the first plague pandemic, would have required human spread for a realistic spread rate from west to east over 5,500 km.
The bubonic plague was spread by fleas, not rats The most infamous flea-to-human transmitted disease is the bubonic plague, which was caused by the bacterium Yersinia pestis.
The timeline of the COVID-19 pandemic lists the articles containing the chronology and epidemiology of SARS-CoV-2, [1] the virus that causes the coronavirus disease 2019 (COVID-19) and is responsible for the COVID-19 pandemic. The first human cases of COVID-19 occurred in Wuhan, People's Republic of China, on or about 17 November 2019. [2] The first human case in the United States was on 21 ...
The global COVID-19 pandemicarrived in Europewith its first confirmed case in Bordeaux, France, on 24 January 2020, and subsequently spread widely across the continent. By 17 March 2020, every country in Europe had confirmed a case,[3]and all have reported at least one death, with the exception of Vatican City.