How would the plague spread in each city?

The plague typically spread in cities through a combination of factors, including crowded living conditions, poor sanitation, and the presence of fleas and rats that carried the disease. In densely populated areas, close contact among people facilitated human-to-human transmission, especially in marketplaces and public spaces. Additionally, contaminated food and water sources contributed to its rapid spread. The movement of people, trade, and migration also played significant roles in introducing the plague to new areas.