The Plague Down

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A deadly disease that has a history for pandemics has nicknames of “Black Death or Black Plague”(BubonicPlague1). The plague is an infectious disease that is caused by Bacterium Yersinia Pestis.
Yersinia Pestis gets passed around by rodents and then to fleas and then to humans. The fleas bite the rodents, that are infected with this bacteria, and once Yersinia Pestis is internalized the bacteria will start to multiply. The bacteria in the flea gets so big that, when the flea tries to feed on the human, it stops any blood from going in to the fleas stomach cavity. Instead of the blood going through the Yersinia Pestis comes out and into the human being. Therefor “a single gene was likely responsible for the death of about 25 million people during the plague pandemics of the Middle Ages”(BubonicPlague8). All of this is the causes that started the plague. There’s only one other way that the plague can be passed on and its if the Yersinia Pestis gets into the human beings lungs. Then that human being can pass it on to another human being by then coughing and sneezing. This form can only happen because there are three forms of the plague.
The three forms of the plague all have a different levels of seriousness and symptoms. Forms of the plague are bubonic, pneumonic, and septicemia plague. Out of all three of the plagues, the bubonic plague is the most common and the other two are more fatal. Bubonic plague is the result of a fleabite and is caused by swollen. The symptoms for the bubonic plague is lymph glands. The lymph glands are also called buboes, which are very painful. Other symptoms are shivering, vomiting, fever, muscles aches, intolerance to light, weakness, pus in armpit, pus on groin, white coding on tongue, and also h...

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...pe. And that’s only Europe. There were many other cases of small brake outs and also the third pandemic. This pandemic killed about twenty percent to fifty percent of the population. It is said that this changed the course of history.
All that has been said is that there are three different forms of the plague and three main pandemics that happen over the history. Although they did not know everything we know about the plague now a days, it still effects our history and in that history it effected family and friends.

Work Cited

“Black Deaths Pandemics.” World of Health. Gale, 2007. Student Resource in context.

Web. 19. Mar. 2014

“Bubonic Plague.” World of scientific Discovery. Gale, 2007. Student Resource in

context. Web. 19 Mar. 2014.

“Plague” UXL Encyclopedia of science. U*X*L, 2007. Student resources in context.

Web. 19 Mar. 2014.

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