The Asiatic brown rats were a species of rat that were very different than the plague caring black rats. The black rats were very susceptible to a type of flea that carried the plague well and was attracted to biting human. The Asiatic brown rat housed a different type of flea that carried the plague poorly and didn't bite humans. The brown rat beat out the black rats and became the dominant rat in Europe.
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The original carrier for the plague-infected fleas thought to be responsible for the Black Death was the black rat, and it has been hypothesized that the displacement of black rats by brown rats led to the decline of bubonic plague. This theory has, however, been deprecated, as the dates of these displacements do not match the increases and decreases in plague outbreaks. ~ From Wikipedia ('Brown Rat')
Rats were the vector of the bubonic plague
Unless you live in somewhere highly populated by BLACK rats (not brown rats) you don't have much chance of getting it, as they are the ones the fleas lived on. The black plague nowadays is also cured by antibiotics.
The plague was spread by fleas that lived on the rats.
The carrier of this plague is the rats the carrier of the plague is actually fleas and ticks because they bite the rats and give them the plague. So the carriers of the plague are most rodents, ticks, and fleas.
The plague was carried by rats, who were infested by fleas. As the rats succumbed to the plague, the starving fleas fed on humans infecting them with the plague.
the causes of the plague was the fleas on the rats they bit the rats and then when the rats died they moved on to bite the humans
The black plague. The plague was transferred by rats.
rats carried flea's. the flea's carried the plague the people got the plague from the flea's but blamed the rats.
Wild black rats.
Beacause rats have fleas.