Yersinia pestis

was made there were and are no cases of polio.For the last example we have the bubonic plague the most common form of plague in humans, characterized by fever, delirium, and the formation of buboes. The bubonic plague is caused by the bacteria Yersinia pestis. It can spread through…

Plague and the End of Antiquity Using twelve essays to form a volume, Plague and the End of Antiquity attempts to address the Justinianic Plague that ravaged the entire globe from c. 540-750. History, archaeology, epidemiology, and molecular biology are combined to “produce a comprehensive account of the pandemic’s origins, spread, and mortality, as well as its economic, social, political, and religious effects.” Because of the sheer magnitude and scope of the Justinianic Plauge, the editor of…

were many theories of the cause of the disease however analyses of DNA from people in Europe shows that the bacteria that is responsible for this terrifying disease which killed almost one third of the population of Europe in the Middle Ages was Yersinia pestis bacterium, resulting in several forms of plague (Haensch et al., 2010). It is assumed that the Black Death have originated in Central Asia and travelled through Europe by the Silk Road and carried by Oriental rat fleas inhabiting on black…

This caused conflict and also caused the merchants to ally themselves with the kings. The second event that made the Middle Ages all the worst to live in was Black Death. Black Death, or the Bubonic Plague, was a disease caused by the bacterium Yersinia pestis, characterized by acral necrosis (blackening of the skin), swollen lymph nodes, fever, chills, abdominal pains, diarrhea, vomiting, and bleeding from external openings. It started in China and spread through biological warfare when…

What are causes of pollution and how can it be stopped or decrease ? Pollution is a presence of introduction into the environment of a substance that has harmful or poisonous effects. Most of the human life activities that happen each and every day for us to survive are polluting the world. Pollution is overcoming the earth and destroying lots of natural resources that we need. Pollution is known to cause human illness around the world. Pollution is causing bad damage to the earth for many…

In the war against terrorism, Weapons of Mass Destruction (WMD) pose a potential strategic scenario (White, 2012). R. James Woolsey, former head of the Central Intelligence Agency believes terrorist possessing the capabilities of WMD represent the single most serious threat to United States national security ( ). The challenges of WMD are; they are easy to build and easy to hide. One of the most challenging weapon types of WMD are biological agents. These agents are viewed as infectious…

Survival of the Sickest, written by Dr. Sharon Moalem provides a fascinating glimpse into the idea that modern day human diseases that afflict us actually have a significant role in the selection and existence of our ancestors. Before reading this book, I was used to thinking of diseases as disorders that adversely affect a person. While this may be the case for most individuals, Moalem explained in his book that that there’s an underlying connection between various diseases and longevity of a…

The effects of the Genghis Khan Empire in medieval Europe The Mongols were primarily nomadic people, however, in the late 12th century, a ruler named Temujin was able to bring them together. Temujin incorporated different tribes into one and formed the Genghis Khan Empire. In 1209, the Genghis Khan Empire invaded northern china, and continued their invasion for the following decades; by 1279 the entire Chinese region would be under the Mongol rule. Under Temujin’s grandson, the Mongols spread…

Change is the law of life. And those who look only to the past or present are certain to miss the future-John F. Kennedy. The Black Death was a tragic event that took place in Europe during the 14th century. The disease left a lasting impact on Europe, resulting in a new worldview. The Black Death, one of the greatest catastrophes in history, resulted in a world of fear. What started as a few infected sailors docking in Italy, resulted in the death of half of Europe's population. The disease…

hosts, they are victims of the disease.” Originally, some may think that this plague comes from an animal and is then transmitted to people, but this is not the case. “The actual pathogen is a bacillus (a form of bacteria; pl. bacilli) called Yersinia pestis, which was first isolated and identified in 1894 by the French bacteriologist, Alexandre Yersin, after whom it is named.” The plague comes from a form of bacteria which lives in bloodstream of rats. It then moves from the rat bloodstream to…