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7 lip 2022 · Plague is a very severe disease in people, particularly in its septicaemic (systemic infection caused by circulating bacteria in bloodstream) and pneumonic forms, with a case-fatality ratio of 30% to 100% if left untreated.
Due to the long time spans, the first plague pandemic (6th century – 8th century) and the second plague pandemic (14th century – early 19th century) are shown by individual outbreaks, such as the Plague of Justinian (first pandemic) and the Black Death (second pandemic).
Plague is an infectious disease caused by Yersinia pestis bacteria, usually found in small mammals and their fleas. The disease is transmitted between animals via their fleas and, as it is a zoonotic bacterium, it can also transmit from animals to humans.
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.
History’s Seven Deadliest Plagues. SARS-CoV-2 has officially claimed 5 million lives, but credible estimates place the pandemic’s true death toll closer to 17 million. Either count secures COVID-19’s position on our list of history’s deadliest plagues. 15 November 2021.
15 maj 2024 · Plague worldwide. More recent plague epidemics have occurred in Africa, Asia, and South America, but most human cases since the 1990s have occurred in Africa. Almost all of the cases reported in the last 20 years have occurred among people living in small towns and villages or agricultural areas, rather than in larger towns and cities.
23 paź 2017 · Plague is an infectious disease found in some small mammals and their fleas. People can contract plague if they are in bitten by infected fleas, and develop the bubonic form of plague. Sometimes bubonic plague progresses to pneumonic plague, when the bacteria reaches the lungs.
