Possibly, they can carry various diseases
probably they can if they had fleas lol :)
To kill fleas, it is good to fumigate the house or room in which they have spread. Fleas need to be sprayed with a strong chemical in order to control their spread.
Fleas living on black rats. Fleas, and the fleas spread on rats. Close quarters living (Castles, cramped city's due to walls) helped make it spread even faster.
fleas on rats
Yes any flees in general will spread.
Fleas spread the plague
fleas on rats
It is definitely possible to spread fleas around. Fleas go everywhere, so if you go somewhere with fleas, chances are that they are on you, and will soon be in your house, on your pets, or wherever you go. Until you take the right procedures to get rid of them. Fleas spread, and multiply like crazy.
the plage was spread throughout animals, which carried fleas, and fleas carried the disease. china did not carry the disease, because they had boiling water.
rats caried fleas and the fleas would make you sick
fleas can transmit plaque because they can handle it they can not carry aids due to not only their sizes because of how there orgasms work as well they pressure it would put on the body.
Aids are dangerous :)