1 year, 7 months ago
about Plague
what was the cause of the spread of the bubonic plague in the middle ages?
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M$1 Answer
A European rat and rodent infestation caused the middle age spread of bubonic plague from rat to human. There was no existing vaccine and those infected contract the disease.
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M$
http://www.hyperhistory.net/apwh/essays/cot/t2w13blackplaguep1ab.htm
It is from infected fleas, that attached themselves to the rats.