There was a certain species of flea that preyed on rats. The fleas carried the Bubonic Plague virus. The fleas transmitted it to the rats they fed on. The rats then transferred it to humans, and the rats were blamed.
Flea in-fested rats.
No one did it was rats that carried black death (plague)
in the famine black rats and other rats carried black death
the black death was carried by fleas that were on rats and the rats were on boats and they were carried over
Fleas on the backs of rats carried the black death.
it was carried by rats which caught the disease from parasites
Was carried by fleas.
The rats carried flees in their fur during the black death
It was carried by the fleas that lived on the rats.
The black death was carried by the oriental rat flea which then was past onto the rats then humans
The rats and fleas carried the black death ** Correction... Rat fleas carried the Bubonic Plague. There is still speculation as to whether the black death was actually bubonic plague as there are very many differences between the pandemics. One theory is that the black death was actually Ebola.
By fleas which were carried around by rats.
people carried the disease with them.