Yes
rats
black death was caused by Yersinia pestis bacterium. It spread by rats and fleas.
They know it was caused by rats and fleas
The Black death was caused by fleas who were bourne on rats living on trade vessels essentially jumped ship at various ports
The black death was caused by rats with the fleas that had sucked bad bacteria contaminated blood out of a rats body. Then because the fleas find the nearest living thing, bites it and releases the disease into the blood of the victim, with causes them to become very sick with the plague.
The black death was thought to be caused by black rats, carrying fleas. But other strange reasons: Gods Wrath, warlocks curse, etc.
The Black Death was spread by fleas which lived on black rats.
the black death was carried by fleas that were on rats and the rats were on boats and they were carried over
No, that understanding did not come until the 20th Century.
because it called the black bloody death ! duhhh xx no not really it was due to rats and it was basically another form of plague
A bacteria called Yersinia pestis which was carried by rats and the fleas that lived on them
To kill the remaining living viruses and bacteria.