Yersinia

because amidst the High middle ages, trade expansion was going great, strengthening trade with Europe and Asia. With trade, ships were a key factor in spreading the disease between the continents. The rats carrying the disease known as bacterium Yersinia Pestis on the ships. These “death ships” arrived in 1347 in the Sicilian port of Messina, after a protracted amount of time sailing the Black Sea, when the people came to greet them, all

Body Many people have a fear of rats, and that fear is completely justified since they were the source of a disease that killed about 200 million people worldwide, the Black Death. The Black Death or the plague is caused by a bacterial strain of Yersinia pestis. The disease is believed to have emerged in Central Asia around 1340. From Asia, the disease has managed to spread throughout the entire world. Even today, the disease still affects all parts of the world, including the United States. The

History) The plague ranges from 1 to about 17 cases a year. If an out-break starts it wouldn’t be noticed symptomatically for at least five to seven days. After that it has to be diagnosed and treated if possible. During this incubation period, the Yersinia pestis gets moved and spread at a rapid pace and it will cause massive amounts of death. Greater than any of the previous plagues combined. With the densely populated areas like New York, or Washington the death rate would clear about 95% of all

Perhaps the disease could have been stopped and controlled, but people continued to travel causing the dispersion. Rats are on of the nastiest creatures when talking about the spread of disease and infection. The Black Plague is no exception. Yersinia Pestis, the bacteria causing the plague, was transported by rodents and fleas throughout Europe. Rats were merely the arbitrator between the disease and the infected, dying to pass on the infection. (CDC Transmission) During the time leading

the rat, and the bacillus Yersinia pestis– have been labeled the “unholy trinity” (Boeckl). The flea is able to live in environmental conditions of about 74° Fahrenheit and 60% humidity (Ibid). Before the Black Death reached Europe, they were experiencing those same types of weather conditions. The rat flea, Xenopsylla cheopis and the human flea, Pulex irritans, are both capable of transmitting plague (Boeckl). Sometimes, an infected flea cannot ingest blood because Yersinia pestis obstructs its digestive

difficult to survive, they have now found ways to prevent the virus from infecting anyone else. To start off, the cause of this epidemic, it was given to the people of Europe by flea infested rats and mice. The rats and mice had a disease called Yersinia pestis. The disease was easily given to people through fleas that were feeding off of the rats, and they often called them “black rats”. Even though,

was a deadly disease that affected people physically, economically and socially. Black Death was easily cured by antibiotics but the lack of development in science was devastating. It is spread by bacteria called bacillus Pasteurella pestis (Yersinia pestis). The disease was transmitted to the person through fleas in the black rat. Since the disease was spread through

The bubonic is only one of three types of plague History: There were 9 US cases of the plague in 2015. The plague started in 1347 when 12 genoese trading ships crossed the black sea and docked in Europe. The black death killed 20 million people in europe over the next five years 1347- 1352. The 12 ships that came into port would be known as “Death Ships”. Even before the death ships ported at messina many europeans had heard rumors of a “Great Pestilence”. That was craving a deathly path across

Mike D. states, “ It was this rat which ushered in the Black Plague. Fleas that lived on the rats transmitted the Yersinia pests bacteria to millions of unwitting victims.” This means that rats are very dangerous because they carried a disease, passed onto the fleas, who then passed it onto the humans killing millions who were innocent. Furthermore, this shows how just

The Plague is an infectious disease caused by a strain of bacteria called Yersinia pestis. These bacteria are mainly present in rodents, particularly rats, and the fleas that feed on them. Other animals and humans usually contract the bacteria from rodents or flea bites or by eating an infected animal. Bubonic plague infects your lymphatic system (the immune system), initiating inflammation. If left untreated, it can move into the blood and cause the septicemic plague, or it can move to the lungs