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The strain of Yersinia pestis responsible for the Black Death, the devastating pandemic of bubonic plague, does not appear to be a direct descendant of the Justinian plague strain. However, the spread of Justinian plague may have caused the evolutionary radiation that gave rise to the currently extant 0ANT.1 clade of strains. [44] [45]
The first plague pandemic was the first historically recorded Old World pandemic of plague, the contagious disease caused by the bacterium Yersinia pestis. Also called the early medieval pandemic, it began with the Plague of Justinian in 541 and continued until 750 or 767. At least fifteen to eighteen major waves of plague following the ...
Dubbed the Justinian Pandemic or the Plague of Justinian, the disease spread throughout Roman Egypt before infecting the rest of the world over the ensuing 200 years.
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).
It causes the disease plague, which caused the Plague of Justinian and the Black Death, the deadliest pandemic in recorded history. Plague takes three main forms: pneumonic , septicemic , and bubonic .
There is evidence of still another volcanic eruption in 547 which would have extended the cool period. The volcanic eruptions caused crop failures, and were accompanied by the Plague of Justinian, famine, and millions of deaths and initiated the Late Antique Little Ice Age, which lasted from 536 to 560. [3]
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.
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.