Researches and investigations concluded that this plague spread through the fleas living on rats. The infected fleas would then move from rats to the humans. People bitten by the flea would get the plague and the cycle continued.
The plague Yersinia pestis came in two different forms, Septicaemic Plague and Pneumonic Plague. Septicaemic Plague occurs when the plague bacteria affects the bloodstream. Pneumonic Plague takes place when plague bacteria affects the lungs and causes pneumonia.
During this time main cities across Europe and Western Asia were linked through trade routes. People traded with Europe, Asia and Mediterranean world. One of the most significant trade route was The Silk Road. This trading network originated in China and cultural interactions with regions in Asia and the Mediterranean. It allowed Asian and Mediterranean worlds to trade goods, inventions and