The main reason for the plague was caused by flees and rats. These animals spread the illness to nearly all of Europe, killing countless people and wiping out civilization. There was a cycle of how the plague was spread. First, the flea would drink the rat’s blood that had been infected by contagious soil, and this caused bacteria to multiply in the flea’s gut until the gut was clogged with bacteria. Finally the flea bites a human, which regurgitates their blood into an open wound, and the victim is infected. The lack of hygiene meant that the rats would multiply, and the plague could be spread nationwide.
The dirty towns helped to extend the plague all around Europe. The filth all around the cities and towns, made it possible for the plague to be extremely infectious. The dirty towns helped the rats multiply and extend to infect more fleas, which they infected humans. Due to the fact that the citizens were not educated, they did not know how to stop it. They kept on doing unhygienic activity day after day. Some examples were throwing rubbish out on the streets, not taking showers, and urinating and excreting in lakes and oceans.
The main consequence for a polluted living style was people getting killed. Millions of people were killed during the plague, and each