Yersinia pestis

The Black Death was a highly contagious mortal disease. It spread across Europe around the 1340s through 50s. The black death killed about 50 million people; up to sixty percent of Europe’s population. The disease comes from a bacteria called Yersinia pestis. The bite of infected fleas and rats as well as person to person transmission made it spread faster. New trade routes, growth in population and cities, enhanced the outrage of the disease. The opening of trade in Western Europe and China…

It is bacteria (Yersinia pestis) that have gone bad which lives on the stomachs of fleas that lived on rats. When the bacteria are in the right conditions, it can multiply and then the flea gets sick. When the flea gets sick, it injects the bacteria into the rat. From there…

The Bubonic Plague in the Middle Ages About the worst disease in world history, the bubonic plague killed millions of people and wrecked countless other lives in Europe during the Middle Ages. It destroyed multiple societies and civilizations, causing people to flee from their homes and look at the world differently than they ever had before. The disease baffled doctors and citizens alike. Only now do researchers know what factors likely caused the disease. The bubonic plague had many different…

rat, known as Rattus rattus, and is therefore the reason for the deaths of roughly fifty percent of the population of the continent of Europe in the time span from 1347 – 1352. Another study shows that the rats carried a microorganism called Yersinia pestis that caused the plague and would be picked up by these fleas that then carried the bacteria from rodent to rodent. These rats would live near or inside the homes of humans and the disease would therefore infest the homes of these individuals…

Ancient Rome was one of the greatest empires in the entire world. However, 476 CE marks the fall of the Western Roman Empire. Many issues caused this to occur. For example, apathetic citizens spread a negative vibe. Also, the economy began to struggle economy upon halted expansion. These are only two of the many problems that the Western Roman Empire faced, and this proved that no matter how great an empire, issues can lead to its decline. Much of Rome 's population was made up of serfs.…

“Universal Plague.” The widespread plague originated in Central Asia and was most likely variants of the bubonic and pneumonic plagues. The bubonic plague, which was the most common during the pandemic, was a case caused by the transmitted bacillus Yersinia pestis from its carriers—the rodents. It was transmitted to humans by fleas that fed off of carrier rats and mice. The plague spread to Europe when corpses infested with the plague…

The Light or Dark Ages? The Middle Ages of Medieval Europe is well known for being called the “Dark Ages”. Why? Diseases, invasions, and continuous wars contributed to the “dark” nickname that the Middle Ages have become known for. The fall of Rome during 400 A.D. to 500 A.D. led to the Middle Ages. When Rome fell, Europe was thrown into much disorder and chaos therefore leading to the nickname of the “Dark Ages”. Some people wonder if the Middle Ages deserve to be called the “Dark Ages” or not.…

This class was focused on many aspects of different infectious diseases. The bubonic plague was one that I personally found very interesting because it’s something that I have always learned about in grade school. I always found it interesting, but we were never taught about it in depth. I was really excited to take this course for many reasons. Learning in depth about the bubonic plague was one of those reasons. The lesson on the bubonic plague was what intriguing and really fun to learn about…

during the medieval time period in the fourteenth century. The dictionary definition of plague is "a disastrous evil or affliction." (http://www.merriam-webster.com/dictionary/plague). The plague comes from the organism with the scientific name Yersinia Pestis. If the disease is left untreated, it can progress to become very severe. The plague caused upwards of fifty million deaths during the 14th century alone. (http://www.who.int/mediacentre/factsheets/fs267/en/) There were a total of three…

The Great Plague of 1665 and the emergence of HIV/AIDS are similar and different in a variety of ways. Some ways that these two outbreaks differ is that HIV/AIDS affect people globally while the plague was centralized mainly in Europe and central Asia, different hosts or agents were responsible for the outbreaks and affected the body differently, and that the governments of the infected areas responded to the outbreak differently. Various ways that caused the two outbreaks to be similar was that…