Yersinia pestis, is well known for being the cause of the bubonic plague; the cause of the black death that plagued medieval Europe. What is not nearly as well known, is that there are actually three different forms a Y. pestis infection can take: pneumonic, septicemic, and bubonic. How Y. pestis infects the body and why it is so deadly are also largely unknown with regards to most people’s knowledge of the subject. Much research has gone into this bacterium and the body’s response to the foreign invader. The bacterium is still relatively common in parts of sub-Saharan Africa, so a greater knowledge of this microbe is imperative for humans to be able to stay safe considering the danger
The purpose of this laboratory exercise was to perform tests necessary to be able to distinguish one microorganism from 10 others. Using a series of biochemical tests and characteristics, unknown #22 was concluded to be Pseudomonas aeruginosa. A dichotomous key was mapped out and used during this process. Using this provided guidance as well as organization as to what the result may be.
One organism that commonly causes diseases in humans is Yersinia pestis. This bacterium is the causative agent of the infamous bubonic plague, primary septicaemic plague, and primary pneumonic plague. Y. pestis was first discovered by Shibasaburo Kitasato and Alexandre Yersin, but due to Yersin’s description of the bacteria being more accurate, this bacterium was named after him (3). There are still disputes going on for who had correctly identified Y. pestis first.
Welcome to week 4! This week we are discussing what consequences face the Nation if our chosen threat isn’t adequately addressed and whether we believe that it is being addressed adequately now. Of the six security challenges that are mentioned in the 2014 Quadrennial Homeland Security Review, I have chosen to discuss biological threats. Biological terrorism is a scary prospect that should be a growing concern for the country. The reason for this is the ease at which a bio attack can be put into action. Depending on the level of intricacy of the attack, the effects could be isolated to one area or become a pandemic that spreads across the United States. Bioterrorism comes in many forms but as a general explanation biological
In the early half of the fourteenth century Europe experienced one of the most deadly and disastrous epidemics this world has ever seen. The Black Death or bubonic plague which is caused by the Yersinia pestis is said to half wiped out close to half the population at the time of the outbreak. What is scary is that the same disease has had outbreaks of the plague in both North and South America in recent times but we have not had the same devastating results that we saw in Europe during the fourteenth century. Infectious disease is still the leading cause of death in the world today and as the world becomes more of a "global village" the chances of naturally transmitting diseases is ever growing. In this paper we are going to discuss the factors
Yertinsa pestis, or Black death was one of the worst natural disasters in history. It killed a worldwide count of 155-220 million people. It is believed to have been one of the first cases of biological warfare when the Mongols catapulted the dead bodies infected with Yersinia Pestis over the city walls, into the city of Caffa, Crimea, an area which they were at war with..
The Middle Ages were a very dark time, education became very unimportant and people were forced to live in very close quarters and, consequently, hygiene was atrocious and it made the perfect place for Yersinia Pestis to thrive. Yersinia Pestis is the virus responsible for the Black Death, a deadly disease that rapidly powered through Europe, killing nearly everyone in its way. The Black Death had many gruesome and scary symptoms that made bystanders sick just watching. Some people were more likely to get the Black Death than others. Because peasants had worse living conditions than the nobility, they were far more likely to catch the Plague. The history of the Plague and its track is very surprising to most people and when you see just how
It has been several decades since our last major pandemic, but for the most devastating pandemic in history was the bubonic plague. The bubonic plague is a bacterium, Yersinia pestis, a disease that affects humans and other mammals. This bacterium disease attacks the lymph nodes that are located throughout the body. Swollen lymph nodes may be a sign that the body is dealing with an infection. The largest groupings are found in the neck, armpits, and groin areas.
The bacteria Yersinia Pestis is the cause of the black plague. Y. Pestis was discovered by Alexandre Yersin in 1849. The plague was the cause of one of the world's most horrific epidemics in the entire world. The plague is an infectious disease that first appeared in 1347 in China and made its way to Asia and then the Black Sea. The Black Plague has caused death to about 75 million lives. The plague is a deadly bacterial infection that can cause death if left untreated. The plague got its name the “Black Death” due to the fact that this disease caused black boils on the skin and that its victims were always on the verge of death when seen. The Plague would then soon arrive in Europe
“Bioterrorism remains a major threat for the United States despite more than $65 billion spent on protecting the country from myriad dangers, the Bipartisan WMD Terrorism Research Center said in its latest report Wednesday. The center's Bio-Response Report Card evaluated U.S. preparedness for countering threats from bioterrorism and found the country remains vulnerable to multiple threats and "largely unprepared for a large-scale bioterrorist attack."”(UPI.com, 2011). There have been over a dozen leading U.S. bio-defense experts that have taken part in figuring out where we are exactly as a county and what the effects of a terroristic attack
The black death was a catastrophic time in our history (1347-1352) When it came to health care the way the people handled it back then was not superior. If a disease like the black death happened again today we would be more prepared for it because of the technology we have today (2017).
Plague is caused by the bacterium bacillus Yersinia pestis, and is carried by rodents, fleas, and mammals. Plague takes three forms: bubonic, pneumonic, and septicemic. Bubonic plague affects the lymph glands, while the pneumonic and septicemic forms affect the lungs and the blood. Today, plague can be prevented by antibiotics and strict public health measures. Three methods of controlling carriers involve sanitizing the environment, educating the public on how to prevent exposure, and using prophylactic antibiotics.
The infectious disease known as “the Plague” is spread by a bacterium classified as Yersinia pestis, which is usually transmitted in the bites of fleas or infected animals or people.
“The Black Death, caused by the Yersinia pestis bacterium, first exploded in Europe between 1347 and 1351.” (Pappas) It consisted of three different plagues; The Bubonic, Septicemic, and Pneumonic plagues. It was first noticed when Genoese trading ships were docked at the Sicilian port of Messina arriving from the Black Sea. People waiting for the ships to arrive were astonished at the scene left on the ship. A big percentage of the sailors were dead. Others that were still alive, didn’t have much longer. They were very sick. They could not eat without needing to puke it up. This scene left a bad taste in the mouths of the people of Europe. They knew something was coming.
Plague is an infectious disease that is caused by the bacterium Yersina pestis. Depending on lung infection, or sanitary conditions, plague can be spread in the air, by direct contact, or very rarely by contaminated undercooked food. The symptoms of plague depend on the concentrated areas of infection in each person: bubonic plague in lymph nodes, septicemic plague in blood vessels, pneumonic plague in lungs. It is treatable if detected early. Plague is still relatively common in some remote parts of the world.