Answer:
The Black Death was a horrible disease in the Middle Ages that came from China from rats. The fleas on the infected rats would drink up the blood then go to a human and drink some more. The infected blood would go to the human and give it the Black Death. People who had it would vomit blood constantly and then die. They would also have swelling that would start out red and then turn a purple or black color. When people were bled their blood was black.