The bacteria were carried by fleas on rats, whic h were quite galore(postnominal) in Medieval towns due to unsanitary conditions and overpopulation. The fleas would bite the rats and exit infected with the diseased blood. The fleas would then jump from the rats onto people, thus infecting the host. Because the hatred was opening easily, through sneezing and coughing as substantially as the fleas, the infection spread like wildfire. By the end...If you exigency to establish a full essay, order it on our website: BestEssayCheap.com
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