Bubonic plague

Definition and stakes

E. R. Stitt,  The diagnostics and treatment of tropical diseases (1922)

“ Regurgitation of the contents of the oesophagus occurs, thereby inoculating plague bacilli. When the rats die these fleas will attack man and cause human plague. The ordinary type in man is bubonic plague, characterized by extremely tender glandular enlargements. This form of the disease is thought to be exclusively transmitted from man to man by fleas or possibly bedbugs. A second type is pneumonic plague which is a surely fatal pneumonia which is transmitted from man to man by droplets of sputum expelled in coughing. ”
Source: Gutenberg

Arthur Shadwell, Harriet L. Hennessy and Joseph Frank Payne,  1911 Encyclopædia Britannica (1911)

“ The plague of Justinian began at Pelusium in Egypt in A.D. 542; it spread over Egypt, and in the same or the next year passed to Constantinople, where it carried off 10,000 persons in one day, with all the symptoms of bubonic plague. It appeared in Gaul in 546, where it is described by Gregory of Tours with the same symptoms as lues inguinaria (from the frequent seat of buboes in the groin) . In Italy there was a great mortality in 543, but the most notable epidemic was in 565, which so depopulated the country as to leave it an easy prey to the Lombards. ”
Source: Wikisource

W. T. Councilman,  Disease and Its Causes

“ The disease is caused by a small bacillus discovered in 1894 which forms no spores and is easily destroyed by sunlight, but in the dark is capable of living with undiminished virulence for an indefinite time. The disease in man appears in two forms, the most common known as bubonic plague, from the great enlargement of the lymph nodes, those of the groin being most frequently affected. The more fatal form is known as pneumonic plague, and in this the lungs are the seat of the disease. ”
Source: Gutenberg

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