Plague bacillus yersinia pestis essay

The disease is characterised by abnormally swift passage of waste material through the large intestine, with consequent discharge of loose feces from the anus. Modern therapy has reduced the global fatality rate of plague from its historical level of 50—90 percent to less than 15 percent.

During the incubation period, the bacterium is actively replicating. Between and a new outbreak appeared in North AfricaTurkeyPolandHungaryAustriaand Germanyprogressing northward.

The third plague pandemic was the last, for it coincided with and in some cases motivated a series of achievements in the scientific understanding of the disease. The results of her study provides support for the hypothesis of a single entry of Y. Although some of those factors may have been at work, many of those explanations were premised on the notion that plague had become firmly established in black rat populations in Europe.

Often the immediate and longer-term consequences of the Black Death differed or were the opposite of one another, and its effects varied. It is sometimes presumed to be the disease behind several historic epidemics, such as the pestilence described as striking the Philistines in the biblical book of 1 Samuel.

It is thought that the name Black Death comes from the fact that the tissue turns a distinctive black color during necrosis, or from the general gloominess surrounding the plague.

Essays on Yersinia Pestis

Which disciplines can contribute to the research on plague. Plague Plague is an infectious fever caused by the bacillus Yersinia pestis, which is transmitted by the rat flea. Septicemic plague can arise as a complication of bubonic plague or directly by infection from a flea bite.

Besides the characteristic focal eruptions, there is sometimes a toxic eruption during the initial fever, before the appearance of the true smallpox rash. The next great plague pandemic was the dreaded Black Death of Europe in the 14th century.

Examples List on Yersinia Pestis

Without these cats to prey upon the rats their population increased dramatically. Every strain of Y. For instance, immediately after the Black Death places such as Florence vigorously recouped many of their losses through quick rises in fertility and by drawing migrants from the hinterlands.

Yersinia Pestis - the Bubonic Plague Epidemic

Judging by descriptions of the symptoms and mode of transmission of the disease, it is likely that all forms of plague were present. Between andmore than 23, cases of human plague reported in 11 countries.

It may be mentioned here that Bir, the most affected region of Gujarat, and Latur are not far away from one another. Patients should expect to be quarantined during the course of the treatment to prevent the disease from spreading to other people. Almost all the European ports were struck, but, of all the areas affected, India suffered the most.

fever caused by the bacillus Yersinia pestis, a bacterium transmitted from rodents to humans by the bite of infected fleas. Plague was the cause of some of the most-devastating epidemics in history.

A plague essay can even describe the possible cures. A plague essay should also discuses about the bacteria Yersinia pestis, which is responsible for this disease. You also get information from a plague essay about the mortality rate as well as safety precautions.

A plague essay can be written on various aspects of the disease as well. Three recent international meetings on plague concluded that: (1) it should be re-emphasised that the plague bacillus (Yersinia pestis) still causes several thousand human cases per year [2,3] ; (2) locally perceived risks far outstrip the objective risk based purely on the number of cases ; (3) climate.

The origin and evolution of the plague microbe Yersinia pestis are considered in the context of propositions of modern Darwinism. It was shown that the plague pathogen diverged from the pseudotuberculous microbe Yersinia pseudotuberculosis O:1b in the mountain steppe landscapes of Central Asia in the Sartan: years ago.

Achtman M, Morelli G, Zhu P, Wirth T, Diehl I, et al.

EAA Vilnius 2016: Session report on “Plague in diachronic and interdisciplinary perspective”

() epidemiology, and pathophysiology that is required to Microevolution and history of the plague bacillus, Yersinia pestis. Proc Natl improve its clinical management in endemic areas. The association of historical plague pandemics with Yersinia pestis remains controversial, partly because the evolutionary history of this largely monomorphic bacterium was unknown.

Plague bacillus yersinia pestis essay
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