The Plague.

The plague has probably caused more fear and terror than individually other disease in history. It has killed more than 2 lash million people. But it also brought about some big changes, such as the end of the Dark Ages and the advancement of clinical research. The plague is caused by a bacteria, Pasteurella pestis. The bacteria is originally carried by infected rats, which ar bitten by fleas. The bacteria completely fills the fleas bring out so it cant digest any rootage. Since the flea is so hungry, it flimflams a humankind anyway. The stomach cant hold the blood, so the flea regurgitates into the small open con game wound on the person. That person now is infected with plague. on that point are triad types of plague. The first type is the Bubonic plague. This is the figure that caused the faint Death, which killed a considerable percent of the population of Europe. The symptoms, which evanesce two to six days by and by(prenominal) infection, are pain seriousy shadowy lymph nodes (which are called buboes), black spots on the skin, a headache, and a fever. Death usually occurs about four days after infection. The second type is the Septicemic plague. In this stratum, the lymph nodes are non ab initio involved, which makes the disease more deadly since its hard to diagnose. Its symptoms are blood poisoning, shock, and hemorrhaging.

The last and most deadly type is the pneumonic plague. This form of plague is the most dangerous for a duette of reasons. First, it has an super high fatality rate (can be everywhere 50%!). Second, it can spread through the ai r by droplets coughed up by infected people.! Symptoms include serious pneumonia, fever, and chills. The brooding purpose is one to three days. The plague has been responsible for three study pandemics and multiple epidemics. The... If you want to get a full essay, ready it on our website: BestEssayCheap.com

If you want to get a full essay, visit our page: cheap essay