In the fourteenth century Europe was cursed by a deadly plague, which killed one third of Europe's people. This epidemic is known as the Black Death, or the Bubonic Plague. The plague was carried by rats and fleas along the trading posts, rapidly covering Europe. The plague is greatly effective when it attacks the weak and at this point in time Europe was already weakened from poor farming. The Black Death crept through walls, ceilings, and floors.But there was no avoiding it. One tiny insect forever changed the course of history in Europe.
The spread of the plague was vastly wide. Between 1339 and 1351, the Black Death traveled from China to Europe. The plague is carried by rodent and then it is transmitted to humans from the fleas. Since the plague is not native to Europe, it resides in Central Asia,Yunan China, Arabia, East Africa, and some areas of Iran and Libya. It reached the Mediterranean Basin in 1347. In 1347, it hit Constantinople, Alexandria, Geno and ports in Sicily and Cyprus. Then the Plague entered France, and in Paris it hit maximum death lose. Averaging as many as 800 people a day. The Plague was particularly harsh in Scandinavia, 45-50% population died. But in Iceland it killed 60% of population. In the 1350, two-thirds of China's population lay dead and in 1351 somewhere from 25-50% of the population of all Europe was dead also. At this point the plague finally reached the region in which it entered. These outbreaks and the spread still continue to this day, but with advanced medical techniques it is no longer a major threat. (Http://www.american.edu/projects/mandala/ted/bubonic.htm#r5).
The Plague is caused by the bacillus Yersinia Pestis, known as the most fatal disease of the Middle Ages. (Stefani) The Black Death varied in to three different forms: bubonic, pneumonic, and septiceamic. (http://historymedren.about.com/library/bideath.htm?once=true&)The first symptoms of the Bubonic plague was a blackish pustule, follwed by a swollen lymph nodes.