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The investigation of the pathogen that caused the 19th-century plague was begun by teams of scientists who visited Hong Kong in 1894, among whom was the French-Swiss bacteriologist Alexandre Yersin, for whom the pathogen was named. [33] Twelve plague outbreaks in Australia between 1900 and 1925 resulted in over 1,000 deaths, chiefly in Sydney.
The bubonic plague was the most commonly seen form during the Black Death. The bubonic form of the plague has a mortality rate of thirty to seventy-five percent and symptoms include fever of 38–41 °C (101–105 °F), headaches, painful aching joints, nausea and vomiting, and a general feeling of malaise.
The plague of 1576–1577 killed 50,000 in Venice, almost a third of the population. [44] Late outbreaks in central Europe included the Italian Plague of 1629–1631, which is associated with troop movements during the Thirty Years' War, and the Great Plague of Vienna in 1679. Over 60% of Norway's population died from 1348 to 1350. [45]
Yersinia pestis (Y. pestis; formerly Pasteurella pestis) is a gram-negative, non-motile, coccobacillus bacterium without spores that is related to both Yersinia enterocolitica and Yersinia pseudotuberculosis, the pathogen from which Y. pestis evolved [1] [2] and responsible for the Far East scarlet-like fever.
The San Francisco plague of 1900–1904 was an epidemic of bubonic plague centered on San Francisco's Chinatown. It was the first plague epidemic in the continental United States. [1] The epidemic was recognized by medical authorities in March 1900, but its existence was denied for more than two years by California's Republican governor Henry ...
Between 1970 and 2020, there were nearly 500 cases of human plague reported in the US – about seven cases on average each year, according to the US Centres for Disease Control and Prevention.
The plague is an infectious disease caused by the Yersinia pestis bacteria, according to the Centers for Disease Control and Prevention (CDC). This bacteria is found in many areas of the world ...
A natural reservoir of plague is located in western Yunnan and is an ongoing health risk today. The third pandemic of plague originated in this area after a rapid influx of Han Chinese to exploit the demand for minerals, primarily copper, in the latter half of the 19th century. [50] By 1850, the population had exploded to over 7,000,000 people.