How Rats and Fleas Spread the Black Death

Today, I've learnt how the black death spread easily and how it easily passed on from one person to one another. We all know that the people back then has a poor hygiene but that's not only the reason why the black death spread to so many people, rats and fleas is also one of the reason. It is better if we know something about the things that happen back then so we can have a information and it is better that we know somethings that we should do at the times like this.

Rats is general	Black Rats	Brown Rats	Fleas
The rats is very infectious. Their wait can be up to 430 grams. They are eating almost anything that is edible. Black rats and the brown rats are to most common rats. They are heavy breeders.	Weight about 200 grams. They also called as roof rat and climbing rats. Rattus, Rodent	They can live for a months without food. They also called sewer or wharf rats. You can us a poison, gas traps to kill them.	They can jump 30,000 times without stopping. They are less infectious. Feed on the blood of a host.

This is the diagram that make.

                                

Explanation - They can easily pass it to each other since the hygiene back then is really poor and there is a lot of rats everywhere. The rats is carrying the bacteria and once the flea bite the rat the bacteria will start to multiply on the flea and if the flea bites the human the bacteria will start to grow on the humans body and they will start to have some symptoms like coughing blood, and if the infected human pass it to you there is a possibility that you can due by the end of the week.