The Black Death :: Disease, Plague

The Black Death was one of the deadliest pandemic that hit Europe in history. The Black Death first emerged in the shores of Italy in the spring of 1348 (Gottfried,1). The plague came from several Italian merchant ships which were returning to Messina. Several sailors on board were dying of an unknown disease and a few days after arriving in Messina, several residents within and outside of Messina were dying as well (Poland 1). The Black Death was as deadly as it was because it was not limited by gender, age, or species. The Black Death was also very deadly because it could attack in three different forms: the bubonic, pneumonic, and septicemic plague. Even though the bubonic plague can not be transmitted among humans, it was the most common of the three plagues. The bubonic plague occurs when fleas feed on the blood of infected rodents, which are usually rats (Poland 1). The bacterium that causes the infection is known as Yersenia Pestis. The fleas then pass the bacteria when they bite a human or when materials infected with Yersenia pestis directly enters the body through a wound. The names of this plague come from the swellings, also known as buboes, that appeared on a victim’s neck, armpits, or groin (Gottfried,1).The lymph nodes suddenly become painful and swollen with pus especially in the groin. Later, the skin splits and oozes pus and blood. Blood also comes out of the victim’s urine which, like the rest of the symptoms, smells horribly. These swellings (also known as tumors) could be as small as an egg or as big as an apple. Even though some people survived this disease, others would have a life expectancy of a week. The septicemic plague was transmitted in the same way as the bubonic plague. The septicemic plague was transmitted with direct contact with a flea bite. The only three hosts in which the disease could live in were in humans, rats, and fleas (Inspecta 1). Inside the rat flea, the bacteria Yersenia pestis multiply inside the flea which in turn, blocks the flea’s stomach causing it to be very hungry. As a result, the flea starts biting the host vigorously which in turn would spread the plague to the host. Since the bacterium is still blocking the flea’s stomach, the flea would still be hungry and therefore it would continue to bite other humans until it starves to death.