During the Middle Ages, the diseases they spread very fast because there
were not advances in medical we have in today's society. Human beings could
only rely on their immune system to defend the attack of viruses and bacteria.
The Black Death began in 1348 and ending in 1400 The Black Death had three
forms: bubonic plague, pneumonic plague, and septicemic plague. Bubonic plague
was characterized by swelling of the lymph nodes along the neck, armpits, and
groin. These symptoms were accompanied by fever, chills, joint pain, headaches,
etc.. The pneumonic plague was the most common form of the disease was
transmitted from person to person, an infection transmitted in the air.
Symptoms included blood stained sputum. septicemic plague this form of the disease have a mortality rate of
almost one hundred percent. The septicemic plague was characterized by deep
purple discoloration of the skin and extremely high fevers. The Black Death
caused many deaths in Europe some 25 million people died from this disease.
Some villages were completely depopulated with the few survivors fleeing and
spreading the disease further.
The great population loss brought economic changes based on increased
social mobility as depopulation eroded the peasants' obligations to remain on
their traditional lands. The sudden scarcity of cheap labor provided a strong
incentive for innovation that helped bring about the end of the Middle Ages.