Rats, Fleas and Humans

Following on the Black Plague, we begin to dig deeper into how it spread, what are the factors that made the plague spread. The main reasons for these are the vessels that carried the disease, mainly the rats and the fleas. The rats which carried the fleas were very capable creatures, they feast upon human environments. Not only that but they breed a lot and they produce a lot, they live in groups which make it so that the fleas which carry the plague spread onto the other rats. Once also a flea has spread onto a person, it makes it more than likely to spread further as fleas, having the abilities to jump high and reproduce at an alarming rate. Below is a simple diagram of how it spreads and some information that I have found out about rats and fleas.