Yersinia pestis

The bubonic plague Yersinia pestis In the mid 1300’s a strange sickness struck people were panicked. During this time period the water quality was not the greatest, it was polluted due to boats releasing to many fluids then making the drinking water unsanitary. This strange sickness was the bubonic plague people were getting tumor like lumps on their bodies then later creating red dots on the skin that later turn black. These black lumps become flat in doing so it is spreading across the body…

another scientist in the field, Swiss born Alexandre Yersin (1863-1943) who had worked for Louis Pasteur and had since been travelling and making maps in Vietnam. Yersin had found the germ that causes plague and that’s how it came to be named Yersinia pestis, in his honour. Back in France he was able to make an antitoxin to the germ’s toxins and two years later he was back in Hong-Kong to try it out. For the first time in History people were actually cured of the plague. Today, although the…

thourgh fleas on small podents . It’s one of three types of bacterial infections which is cause by yersinia pestis, it belongs to the family Enterobacteriaceac.if the person does get treatment , the Bubonic plauge can kill you within four days and can also kill two thirds of infected humans. You can get infected with this disease if a infected flea bites you or if a rodent bites you.In rare cases , Y pestis bacteria , from a piece of ctholing or other material used by a person with bubonic…

The plague “How and why did the plague occur in Medieval Europe occur?” The first account of the description of the plague was from Messina. In early October 1347 twelve Genoese Gallery entered Messina Harbour. The people of Messina noticed the men with unusual black boils on their bodies. Anyone who spoke to the men quickly developed a boil the size of a lentil on their thighs and upper arms. This resembled a “burn boil”. The patient would then vomit blood for 3 days after which on the 4th…

this type could be a possible cause of the Black Plague, but at the same time how a certain aspects of it made it not possible. In the end, they believe the Yersinia pestis is the most likely cause of the Black plague, even though they still believe other factors played a role in the all the deaths. Unlike other bacterial agents, the Yersinia pestis has multiple strains so it can adapt quickly and some host rats did not die after being infected, which allowed the disease to continue on to the…

Questions 1. Where did it originate? • The first known account of the disease was in 1338/1339 in Central China • It went on to infect India by the date 1346 2. What is it? Most researchers believe it was caused by the spread of the bacterium “Yersinia pestis” 3. How was the disease spread? • Fleas that lived on the European black rat were called” Xenopsylla cheopis” • Although sometimes a desperate flea would bite a human contracting the disease? • This would then spread by the bacterium…

Jessica Facer Mrs. miller English 12 23 September 2016 Intro It may be inconceivable for some to think that a children’s rhyme such as Ring Around the Rosie would actually be about a disease that killed over a third of Europe’s population in the 1300s. The Black Death occurred in Europe during 1347-1351, and has affected the way that scientists and researchers look at diseases today. The Black Death-also known as the plague or Black Plague- came to Europe in the form of fleas that traveled…

Yersinia Pestis is a gram-negative bacillus that it not motile and has bipolar staining. Although is usually transmitted to humans through a flea bite from a flea that previously fed on an infected rodent. It can be transferred to humans in three known ways.…

The Bubonic Plague was a disease carried by rodents. It was caused by bacteria named Yersinia pestis that was found in the intestines of the fleas on the rodents. The bacteria blocked the intestines of the fleas causing the fleas to starve which made the fleas want to feed often. The fleas would try to clear the blockage by vomiting. When the fleas vomited up the bacteria when they were feeding on someone, that bacteria would get into the bite and that person would become infected with the…

western U.S. However it is a bacterial disease but it can be treated with antibiotics, and it can be prevented by treatment and prompt identification. The Black plague was used in brutal ways. As a deadly disease with a very high mortality rate, Yersinia pestis was used as a biological weapon in wars. Some war strategies included dropping fleas which is infected with the plague from airplanes. Plague raised concern as dangers threaten on the national security because it could be used by…